A question to anti role que people.

Why aren’t we allowed to have both? Overwatch has both and doesen't have much of an issue populating both ques. Hell I’m fine with us not having it in comp cause you should be able to flex there. And it will allow for triple support to still be a thing. But why can’t we have the option for both in at least quickplay so that flex players can get practice on dps consistently even if the que takes longer?