Isn't the wording something like "not gaining an advantage over the reciever"? It doesn't say that you can't touch him. Like someone posted earlier, if the refs will just be consistant the players can adjust.
Technology will take over in 20 years ... before I die there will be an off the field officiating crew, laser first down markers and measurements ... BUT STILL AT LEAST ONE HUMAN ... Probably BALL GUY ... to spot and listen to the "SMACK TALK GOING ON" on the line, LOL