I wonder how much the rep gains will be, it's definitely a decent compromise.
Though honestly I didn't have an issue with the dailies as rep only (and i hate dailies!) I found the MOP dailies to be quite fun and some challenging (shado pan, though frustrating sometimes too *Hello NPC compaion that likes to pull everything*)
And now since starting on alts, the bonus rep from my mains commendations, makes my alts rep just shoot up, literally just did all the levelling quests in dread wastes and was half way through revered without even touching a daily! (Klaxxi rep)
I am in favour of giving people choices though, and I do feel for those that really do not like dailies, nothing worse than *feeling* like you are pushed in a direction you don't enjoy in a game.