Legit criticism is legit criticism.
If I were you all I'd be more worried that we're all heavily invested in a game created and led by someone who crashes out at online criticism instead of being professional about it.
I wouldn't be surprised if he threatens to delete or sell the game to some random the next time he doesn't like feedback.
The key to a quality game is to hold the creators and the dev team to a very high standard. That means criticism and honest feedback.
Vatou needs to grow up as this is a terrible look for everyone involved and especially for new players trying to get into the game.