masdog
What is the airspeed of an unladen Swellow?
Ah. I see what you mean now. That makes a lot more sense. Your original point was worded kind of weird and implied something different.Continuity error in the sense of the anime would be actively denying Cynthia a big role in the anime (in terms of battling) and no longer have the possibility of promoting the Sinnoh Champion whenever if or when they make any games revolving around Sinnoh.
We don't know what the plans are for future Sinnoh games, but I'm sure that the show could work around this for tie-ins for if/when they have to do future Sinnoh tie-ins or other games where she might appear. Some of Cynthia's appearances in JN have been focused on the archeology aspects of her character, so they have other avenues to bring her back.