>>57402500Of course not, they're existing pokémon that migrated from their habitat of emergence to another (either of their own accord, by being brought by humans or even being driven out of one region and into another) and subsequently adapted to its new environments. Unlike megas, which are transient, in-battle forms of existing pokémon, requiring two separate items to bring forth.
I'd like to remind you when Dexit got announced, Game Freak said "Any and all pokémon shown off in game trailers going forward will be included in the game being advertised". And given regionals ARE just an older existing pokémon but with a new colour scheme, they HAVE to be included, if their original form relative is included in the game. Because they aren't new pokémon but an existing one. Now please tell me how your utter incapability means a fuck to the scenario at hand?