I do have to wonder what the animated series post season 1 would have been like if Iga was still at the helm.
If IGA was still at the helm of the series, it would have never seen the light of day. After 8 rewrites until the first movie/season 1 got "passable" and then the project was dead in the water until Kevin Kolde and Adi Shankar revived the project after IGA left Konami. While IGA never said a thing publicly so far
(to my knowledge), we do have something from his best buddy Curry the Kid. He just gave non-answers on his AMA thread when asked if the show captured the feel of the games. Even then, very rarely do creators just go out and criticize or openly say they didn't like adaptations of their works. The only one that comes to mind is Alan Moore.