there is nothing wrong with them. stop trying to steamroll through ignoring everything around, that is what causes you to wipe. how many times do i have to tell them those abominations in arcatraz stop spawning if you kill the elves at the beginning and they still just skip them.
the only issues is see is azerite, specifically laser matrix, causing aggro. dungeons back then took a lot longer to complete, very evident by that 55 minute timer that pops up and people rushing to try and beat that.