I think the real reason for that push against damaging gap closers is that people don't like that kind of skill expression, which is fair. But denying this is about skill expression is delusional, because it's by design an opportunity cost kind of decision making.
The reason why I'm no huge fan of damaging gap closers is not for the skill expression it brings, I actually like it, but because the kind of skill expression it generates is essentially centered around spreadsheet encounter planning, not much different than how triplecast was used or other tools like that.