Messiah Complex ending [spoilers]

I finally read the final issues of the Messiah Complex crossover. On the 
last page, everyone is standing around staring at Prof. X's body, then the

very last panel his body is gone. Huh? Then in Uncanny X-Men 495, Scott 
mentions that they don't know if Prof. X is really dead or not? Huh? A bad

ending to a good and interesting storyline... other than bad art esp in 
chapter 12... I don't have a problem with the decision to kill Prof X.
It's 
just how that last panel was handled and then for his death to be 
questioned. It just didn't make sense.