This is an important point that's often obscured in popular debates. The Textus Receptus is not a transmitted text (like a single manuscript copied down through history) — it is an edited, eclectic, editorially constructed text, produced by exactly the same fundamental method that defines "textual criticism": collating multiple witnesses, weighing disagreements between them, and choosing (or in places inventing) a reading. That is what "critical text" means. Evidence:
1. Erasmus practiced collation and selection, not simple transcription
2. Erasmus engaged in conjectural emendation and cross-language reconstruction
3. Stephanus produced an actual critical apparatus
4. Beza introduced conjectural readings unsupported by any manuscript
5. The only real difference from modern critical texts is which witnesses were weighted, not whether editorial method was used
6. This is precisely why later critical editors treated the TR as a starting point to be corrected, not a terminus
The theological reframing to watch for
Erasmus's manuscript-variant information was collated over years of correspondence and travel before he compiled the Novum Testamentum omne; he then applied his own collation of critical variant readings to the handful of manuscripts he used — this is, by definition, an act of textual criticism: gathering witnesses and exercising editorial judgment among them, not reproducing one fixed exemplar.
Where his Greek witness for Revelation was defective, Erasmus supplemented the missing verses by translating the Latin Vulgate back into Greek, producing readings — like "book of life" instead of "tree of life" in Revelation 22:19 — that exist in no actual Greek manuscript. Back-translation and conjecture are recognized techniques within textual criticism, used when no adequate witness survives. That Erasmus used them proves he was doing critical editorial work, not merely printing a received exemplar.
Stephanus's third edition (1550) was the first Greek New Testament with a critical apparatus — citing the Complutensian Polyglot and fifteen additional Greek manuscripts in the margin. A critical apparatus displaying variant readings is the technical marker of a critical edition. Stephanus was self-consciously showing readers where his witnesses disagreed and which reading he had chosen — the same activity Nestle-Aland or UBS editors perform today, just with fewer and later manuscripts.
At Romans 7:6, Beza (followed by Elzevir) printed "apothanontos" against Stephanus's "apothanontes"; this reading was claimed to have patristic support in Chrysostom but is absent from all existing Greek manuscripts — a conjectural emendation, the most explicitly "critical" (in the technical sense) act a textual editor can perform, since it means preferring a reading attested by no primary source over the reading of the manuscripts in hand.
A modern critical edition like Nestle-Aland or UBS is produced through the eclectic method: editors examine all available manuscript evidence at each point of disagreement and construct a text representing their considered judgment of the original wording — this is a description that applies equally to what Erasmus, Stephanus, and Beza did; they simply had a far smaller and later pool of witnesses (a handful of 12th–15th century Byzantine minuscules, later supplemented by Codex Bezae and Claromontanus) rather than the roughly 5,800 Greek manuscripts, including second-century papyri, now catalogued. The methodological category — eclectic selection among disagreeing witnesses, sometimes with emendation — is identical. What changed between the TR and Westcott-Hort/Nestle-Aland is the evidentiary base and the governing principle (rough preference for the majority Byzantine reading vs. weighting the earliest and geographically diverse witnesses), not the presence or absence of critical methodology itself.
The work of Westcott and Hort brought about the "dethronement" of the Textus Receptus and the establishment of the principle of a (new) critical text — the language of "dethronement" and "establishment of the principle" only makes sense if the TR was already understood by the scholarly community as a critical text (one built on a narrow, late manuscript base) being displaced by a better resourced one, not as some categorically different, non-edited entity.
Confessional defenders of the TR sometimes respond to this by relocating the argument onto theological ground rather than text-critical ground: "The fact that the TR has variants is irrelevant... the concept of the textus receptus contains within it a fundamental theological point... that the church possesses the Word of God uncorrupted," and it is "maintained with the utmost confidence that such critical work must proceed on the basis of faith." That is a candid admission worth noting: it concedes the TR was produced by "critical work" (their words) and instead argues its authority rests on a doctrine of providential preservation guiding that critical work — a theological claim about which text God providentially approved, not a historical claim that the TR was assembled differently in kind from other critical editions. As a matter of documented editorial practice, the TR is a 16th-century eclectic critical text with a narrow, late, largely Byzantine manuscript base — produced by the same collation-and-selection method as any other critical edition, including instances of conjecture and back-translation that go beyond what any manuscript actually preserved.