I do, because both of those mechanics/resources aren’t as deeply integrated into the spec as Insanity is for Shadow Priest.
To put it another way, it’s like trying to make Hunters use Mana again instead of Focus. You can’t just rip out Focus and put Mana back in because everything revolves around Focus, from the spells, to the talents, to the pets, etc. It’s not a 1 to 1 exchange of resource and balancing Hunters around Mana again would be a huge endeavor to get it even to the place it is now, much less in a better balanced spot. Hunters are intrinsically tied to Focus now in a way that Shaman’s aren’t with regards to Maelstrom, etc.