https://us.forums.blizzard.com/en/wow/t/why-the-arguments-for-dual-spec-are-bad/
“In retail, we’ve had free respec for a while now. People can play whatever role their class can offer; however, tanks still have instant queues. It is hard for me to understand how anyone can believe that if we had duel spec, then people would actually be playing more tanks and healers. They think it will happen, but it wont.”