Totally agree. I think it's less about criticism and more about lobbing verbal hand grenades that aren't constructively adding to the conversation or offering any valuable critique. A type designer is well versed on what good type looks like--and that kind of input is fantastic.

To me, it's more about the unsolicited "here, I made you something better" sort of gut reactions that take none of the constraints in mind. Of course we're going to like what we can art direct better.