Don't forget rogue Evasion duels! My Shiv spam will be sorely missed there too.

I'm also not really concerned about Crippling going down to 50%. After playing a Ret pally and DK, you realize that's still plenty to keep mobs in range. Don't forget, we're getting or keeping other abilities to deal with kiting in MoP.

Looking at the talent calculator, there's one on almost every tier:

Nightstalker (20% speed while stealthed)
Deadly Throw (50% ranged snare/interrupt + damage)
Any of the level 60 tier (though Prep will have a less consistent effect on your uptime)
Deadly Brew (apply Crippling when you apply a non-lethal poison)
Paralytic Poison (random stun at 5th stack)
Shuriken Toss (ranged CP generator - good to use with Deadly Throw)

I'm not too worried about lacking the ability to stay on-target. More importantly, this is the opposite of "dumbing it down". Instead of getting huge passive benefits like 70% snares and 20% increased movement speed, you actually have to press buttons more buttons to stay on target in the new system. If anything, this is an increase in the skill cap.