Parries get "singled out" because they throw a wrench in the flow of the game. Also, there have been countless complaints about the parries even from the days of Fight Night. Fight Night Champion did away with the parries (sort of) then it came back in EA Sports UFC 1, then 2. It's the one thing that EA absolutely refuses to touch. I've been saying it recently, it's as though EA needs to keep it for legal purposes.
At any rate, since EA seems to really cater to arcade sensibilities, maybe they can view the block recovery as something similar to performing a roll in arcade fighters whenever you get knocked down in order to avoid follow up ground attacks.