For background on the Tailmon controversy, see below. Spoilers for Tailmon's last stage follow.
|The great religious debate of the 21st century.|
Detractors of Holydramon made the case that The Golden Digimentals!! was an extracanonical film, not fitting in Adventure 02's chronology and contradicting established canon by portraying Tailmon as being able to evolve to Ultimate when her partner Hikari had given up her crest powers (necessary for both Perfect and Ultimate evolution) between the film Our War Game and 02. Advocates for Holydramon countered that the film gave a plausible explanation for her debut, as the film's antagonist was attempting to rewind time during Holydramon's appearance, enabling Hikari and Takeru to evolve their Digimon. (Interestingly, the anti-Golden Digimentals argument has never been used to argue that Seraphimon is not Patamon's canon Ultimate.) Pro-Holydramon fans have pointed out that while Ophanimon is consistent with Angewomon specifically, the same can't be said of Ophanimon and Tailmon, Plotmon, or Nyaromon, all of which are animal-based rather than humanoid, and which share catlike traits. Holydramon on the other hand has feline traits more appropriate for Tailmon's line as a whole.
Ironically, the reverse situation has recently happened to Gomamon. In 1999 Gomamon's original Ultimate was Plesiomon, while in July 2000 (after Adventure had ended) the debut of Vikemon incited debate over whether Plesiomon was more appropriate for Gomamon's Adventure evolutions, or Vikemon as directly succeeding Zudomon. Vikemon had originally appeared as an Ultimate evolution for Angemon & Ankylomon's Jogress, Shakkoumon. Digimon Adventure PSP portrayed Vikemon as Gomamon's Ultimate, which the Digivice Ver. 15th agreed with, and the CSA Digivice has reconfirmed. As a result, Shakkoumon is currently without an established Ultimate form in the Adventure universe.