Quarterbacks are worth too much money to be getting tackled regularly.
The NFL is being forced to change it's style of play on offense, because there are so few college QB's and college offenses in general, that are developing offensive players and grooming for the style of play that keeps a QB healthy, wealthy and wise in the NFL. The sad irony, is that the only way I think that the salary structure, and roster rules of the NFL get changed (for the better of the players), is when more and more QB's that are drafted high, and are invested in highly by franchises, only to see them get injured and flame out in these style offenses.
The good news for the owners in the NFL, is that once they get it figured out that they can't be paying QB's as skewed as they are now, there are PLENTY of college programs developing zone-read-option QB"s, so that they don't have to worry about losing a franchise QB, you just plug in the next one - as long as you're not paying them like QB's get paid now.