So why are people engaged in Normal, Heroic, and Mythic and not LFR when it is the same type of mechanics? LFR is just watered down to make it easier. Remember you also argued that choreographed mechanics are bad as well. So we are supposed to increase the difficulty with out different mechanics while also making it engaging. Well tank and spank fights boring which is why those types of things are rare.
You also say random match making means people don't care about their group members while also advocating for random match making for M+. So won't your suggestion for M+ just cause the same problems that exist in LFR? Strange how you contradict your own arguments.