>>52944138IIRC all we know is that pokemon are often designed with some sort of prompt given to the designer(s) like "make a pokemon of this type combination" or "make a pokemon that fits this environment in the region" stuff like that.
I think we heard this before regional variants were a thing though, so maybe it's different for them, but imagine this:
if the designers are given the prompt "it's a Spain region, make a fighting bull" regional tauros seems like a no brainer.
oshawott cyndaquil and rowlet make a good amount of sense for an old japan region, and they probably picked them first and then decided to give them regional evolutions to fit the game more or maybe just to surprise people who expected them to not get new evolutions.
that's just theory based on the little info we have on the pokemon designing process.
some are hard to think of reasons for, like Galatians meowth. that mightve just been a "let's shill meowth again" situation but I don't know since they already had G-max meowth
