Lance Briggs' tweet sums it up nicely...
"Bostic's hit illegal. Hit on Dustin Keller. Legal."
This is the fundamental problem that most have with this shit. The hit on Keller was WAAAAAY worse. The intent, the execution, and of course, the results. Yet, that shit is ok. 100% percent of players would agree with this too.
Things will change the minute an elite QB getting Kellered.