See my answer to this question for a similar answer:
Does ProPedal on FOX RP2 rear shock wear out when on during downhill?
Basically, you could cause damage to the shock by supplying pressure to either the oil or a part that wasn't meant to handle that much force. Now, do I think it'll break after 10 bunnyhops? Probably not, but it could cause much faster wear on the parts involved inside the shock. Also, are you bunnyhopping like a trials rider going 5 or 6 ft in the air? That's a lot more abuse than hopping 4" over that pothole in the road.
So, the bottom line is no, but probably someday. But then again, that's how you'll break anything...repeated abuse!