Are we just gonna ignore the whole "forcing" part?I think a lot of dislike for the Yrel turn comes from people who didn't play the scenario, which apparently is most people if the AR stats are believed. Her "turn" is interesting and she's actually sympathetic to the Orcs, enough for some of them to join her and the Draenei. But if you hear YREL BAD without context you can assume the worst.
Yrel was a favorite because she's a cute girl but in WoD itself she was a bland pair of tits who can paladin... which I guess has some novelty as important female characters were still sparse at that time. I much prefer her to become a more novel character though light antagonism than "friendly quest giver who loves you #2222"
Also a lot of pushback to the Light being a possible antagonist because of fanon ideas of it being Christian faith and God... when it wasn't, especially day one of TBC.