While I in part agree with the OP, I'd be more worried about what dungeon design is going to be like once 2.0 launches. Will we get more of "run to a beacon to make all mobs vanish", or will get start getting "fight your way through the dungeon, complete objectives and fight bosses with interesting mechanics".

On content finder and difficulty levels, I would set it up as such:

Normal Mode: Not insanely difficult and not requiring people to be over the top with gear in order to clear.
Hard Mode: The "canon" version of the instance. Requiring people to know how to stat but not take it to super extremes.
Hard mode +1: Hard Mode but with a time limit. If you take too long you get booted from the instance.