It should be illegal. Even though I loved seeing our OL push and fight, I just saw the ESPN top 10. #4 involving Navy is just ridiculous. It wasn't just a few yards. More like 15 yards of a mass of players pushing the runner into the endzone. This is not f-ing rugby.
Hit the damned player and put him on the ground. If forward progress is stopped, blow the damned whistle. If the rugby cluster forms, drop the flag and blow the whistle. Haven't we done enough to ruin this once great game with all the other crap the NCAA has force fed us? From the targeting crap to kickoff rules, it just never seems to end.
Sorry for the rant so early in the a.m. but I'm not recognizing the game I grew up loving. The NFL is shot. Same for pro basketball. College football is/was my sanctuary. Now it's on life support. Sometimes things change for the better. I can't say this about most sports these days.