Please implement something to teach players how to play

[Shurrikhan]

Again, incorporate or encourage this process of learning into the solo duties through the creative use of mechanics or systems that help to encourage the process of learning.

That is of course where it should come into play first, but if those mechanics don't come into the content unlocked down the road from those solo duties, you naturally divorce that learning from the apparent intent of the game.

My issue with the suggested list is it wasn't rewarding players for good play, you were effectively punishing them within the duty itself for not performing up to a baseline.

Again, I share many of your concerns with Lezard's list. I just don't believe the general ideas the list seems to follow are going in a fundamentally wrong direction, so long as the implementations (the individual fight designs or its mechanics) are well situated.