Those rules were truly for player safety, not to provide advantages to the offense.
This proposed new rule is being pushed under the ruse of "player safety" which it is not. It is a rule being pushed by those like Saban who want to stifle no-huddle offenses than can prevent defensive substitutions.
I know the NFL implemented the rule that a RB cannot lower his head/shoulders into a defensive player because of player safety. I didn't see that called once this past year. The "player safety" rules are a one-way street. We now see a rule (regardless of whether Saban was a main backer) backing the "safety" of the defenders.
It is strange that faking an injury is really the only response a defensive coordinator has to the breakneck speed of offenses these days. Think about that. Faking an injury has become a staple football and that is wrong.
We also see offenses snapping the ball before the chains are set, before the referee is set, before defenders are set, before announcers can swallow their saliva. That is rediculous and needed to be addressed.
Also, with only a 10 second window, a defensive coordinator will not be able to just jog guys onto the field. It will still be a very quick decision and the defense will still have to be on their toes. I personally cannot stand seeing a defense that is gasping for air and whiffing on tackles, or a dime/nickle formation on the goalline, all because the offense can do whatever the hell they want.