>>14372901I have a feeling his arms are so long because he does spend a lot of time on all fours. Lots of fully-evolved starters seem like they'd shift between bi/quadrupedal regularly. Feraligatr, Typhlosion, Swampert, and Samurott (admittedly less built for it) come to mind among the bulky ones), and Infernape and Sceptile seem like they do a lot of four-legged dashing around (Greninja falls into this category, too).
I guess they just figured the model should be standing up since he IS a Fighting type and should have his arms at the ready for battle when not stabilizing himself or using them for movement. Plus he does look fairly imposing when standing up. A little awkward, but definitely still threatening, kinda like a big bear or a ground sloth, I guess. You can tell they may not be built to stand like that, but trying to tell them that when they're pissed and have weaponry at the ready is a poor life choice.
