>>39975214They only had 12 months to make a Pokemon game because Ishihara thought the Switch would fail and Gen VIII would be on 3DS. When importing existing models to new hardware, there are inevitable mapping, bone, and rigging issues; and when forced to choose between fixing every Pokemon model and having Big Pokemon, they went with the latter.
Then Masuda went and used a vague statement about high-quality animations and game balance to cover their asses on the real problem.