Just watched the video. Clearly an illegal hit. I won't say that it is intentional, but still illegal. Personally I disagree that Gabbert ducked. I don't even think he saw the hit coming until just prior to the hit. Watch his helmet. He is looking down field until the defender is about 5 feet away from Gabbert.
Clearly an illegal hit? Gabbert didn't duck? OK, either you didn't watch with objectivity or you simply don't want to admit it.
Gabbert's helmet level drops a full helmet's worth of height, Osborne NEVER changes his angle. All of this occurs in the span of less than a second. If Osborne is plannign on hitting his chest and Gabbert drops, Osborne will never be flagged. You can't hit a QB low, you can't hit him high. If he ducks you are screwed as a DB and all I will say is the other teams out there, you are just a likely to find your team in a similar position... beware spouting off about this play because you WILl see it happen to your player eventually... then you will be changing your tune pretty quickly.