It's not even that. The eraser skill only has an effect
after a block. It decreases the attributes of the guy who got rejected. The same with posterizer, which boosts the ratings of teammates after the dunk. So I don't see why we need some eraser/posterizer thing in 2k14. Don't we have enough attributes to account for that already? If a player has high defensive awarenes, blocking, and maybe vertical and strength, he should be an "eraser" by definition. No need for these childish gimmicks imo.
The same with dunks.
If you have dunk/vertical maxed out in addition to flashy dunk packages, this will make you "posterize" defenders quite often. So what do we even need those sig skills for if the rating system works as it should?