Attacking strawmen doesn't really help you much either.

You're basically asking for fights to be tuned around having to bring a support job. Because if players aren't forced to have one, they won't bring one. We've seen plenty of strategies built around dropping one role or an unnecessary job to speed up fights.

Posters on these forums seem to believe in a bizzaro MMO world where players won't take the path of least resistance when developing a strategy to deal with an encounter, despite having evidence of players choosing to do that shown repeatedly.