I am still waiting for them to release something about user control. This is a video game, after all, and Madden has had issues for the past 3-4 years with controlling DB's and WR's. I don't know exactly why they have so much trouble addressing this issue, but it is far from perfect.
Controlling WR's and DB's should be equal. Neither player should have an advantage, it should be based on positioning (ratings) and timing (stick skill). So far I have seen nothing concerning this issue and every year it is a pain in the ass because either the DB's are too slippery, the WR's can rocket catch right over a CB's head, the CB refuses to jump (alligator arms wtf?), etc., etc.