He's not sour about it. He made a pin, but it never got released. Amy HAS been overly-busy lately, so there was nothing condescending about his statement.
It's totally okay to express your opinion, but being rude about it and trying to tear apart someone's artwork using more than just the artwork itself, is wrong. In fact, you were replying to a post that wasn't even directed at you so idk why you're looking for an argument in the first place.