>>34564097I think it's more than that. If you look closely, Incineroar's upper back sort of loses mass and becomes flatter. From the perspective, it should look even bulkier, but it doesn't.
The legs look longer too, making it look more humanoid, as opposed to its actual gorilla-like build, which would be more suited to running on all fours. The later Charizard battle does the quadruped run better, but kind of fucks up the next shot by making Incineroar's legs look even longer. It's pretty weird.