I haven't seen a single actual valid criticism of Hina from primaries, only secondaries and tertiaries who have never read the story and think the Hina NTR meme is the funniest shit ever. It's always the same three long debunked strawmen. The piano shit, the "other characters exist to make Hina look good" meme, or the "Sensei trusts Hina the most" thing taken entirely out of context. Probably pinoys who can't read English or something.