I appreciate the willingness to try something new. I just am not convinced that Mythic+ affixes in raids is going to be a good idea especially when all of them are just "add does thing, don't let thing happen, now kill add, do big things after killing add". Was hoping to see new boss mechanics that spice up the fight. Like imagine in Phase 2 if Sylvanas is active the whole time and she's in banshee form in between the chains so you have to DPS her down to a certain threshold before she reaches a certain point and every so often she casts her raze from P3 and it destroys the chains behind you so it's a constant motion of moving forward.
You can say what you want about BFA, but the affixes were more interesting and less power seeking. S4 was good.
BFA m+ , reaping and the obelisks were amazing. I loved both of them.