Well, for one, I wouldn't give him the suffix -sama. He isn't Japanese. And besides, he isn't too special. The only reason he gets so much flack is that his game wasn't CV enough. Yes, his game was great, but I still see it a CV in name only. Cox is a good game developer, but is like any "good salesman". He over inflates the good points and either plays down or lies about the negatives. Now then, if he listens to our criticism regarding LoS and keeps that in mind when making the sequel, then I will respect him. If he just ignores the criticism, I will never respect him. I'll still play the game, I will never say I respect him.
IGA, on the other hand, has never truly lied to us. He dropped hints as to what actually happens in 1999, but never actually said anything about working on such a game. Plus, he as for the most part stayed true the time line. The only problem I have with him is his method with making games (Gameplay first, then story). If he did story first and then developed gameplay, then he wouldn't likely get as much flack from fans. Plus, with every game, he changes the battle system. I like metroidvanias and I like what he did with LoI gameplaywise. LoI had no leveling at all. There were max up items for hp and hearts and you could buy armor. Now then, if he just applied that to future metroidvanias, they would be more difficult and would require skill like classicalvanias but would have the exploration mechanics of metroidvanias.
All that being said, I respect IGA. I reserve my opinion of Cox until the LoS sequel comes out and I play it.