>>41352889The trainers were visible back then, too.
GF just doesn't wanna take the time to make a bigger arena for the larger pokemo- Oh wait, they did. With Dynamaxing.
They have absolutely no excuse at this point.
And if they really, really didn't want Wailord getting too big, they could've simply not added it this gen and save it for a later gen.
But nope, we have nearly 100 ft tall Dyna and Gigamaxed forms but poor Wailord is stuck being the size of a kiddie pool.