Sorry, but that's just silly. No matter how cool the dungeon is, you still have it memorized after 100 or 1000 runs. Affixes add variety and keep it from being exactly the same week after week.
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People uses CC and handle debuffs in M+ all the time (or at least the decent players do). They just don't take all day to talk about it first. On a typical run, my team uses paralyze, sheep, root, sapp, shroud, stuns, dispels, interrupts, detox... Way more than we ever needed to use in dungeons from previous expansions. Because at +20, that stuff matters.
Most players like the fast pace of M+ the way it is, but you always have the option of ignoring the timer and just completing the dungeon.
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So tell us your idea.
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These have potential! Although that last one sound like the current Seat of the Triumvirate.