I'm using my knowledge on multiple games tbh, this game has not been going long for alot and tbh the raiding content has not enough variety anyway.
If you are talking only about this game well ye you are not wrong at all, but since other games have shown that pure power has it's benefit I can't really say that synergy simply wins out.

As for the other thing, well I wouldn't say it's counterintuitive and in my opinion ppl simply overestimate just how much mechanics are distructive for BLM during prog, I think I've already stated that imho prog is a place where everyone has to essentially learn how to play the job in that scenario in essence, but I think you and some other ppl don't agree with this, well I suppose that we'll have to disagree on this point, maybe I'm wrong and BLM has to do too much on some fights which is a possibility, though I have to admit I kinda like the challenge in a way so probably I'm biased by this