Eh, there are a bunch of ways a guy can be a competent and effective PKer. Doesn't always have to be a Bonino-type, throwing his body in front of shots, or a defensive specialist.
I think PKing carries this weird mystique for some reason.
Awful, awful players PK all the time, all around the NHL. Jack Johnson for example. People/coaches/execs make such a huge deal out of PKing and it's wild to me.
Hell, the most important PKer on the ice is the goalie. The rest of the dudes can be schlubs as long as they're capable of doing one thing correctly; be it reading plays and getting sticks in lanes, blocking shots, smothering guys along the boards, not failing clears, or whatever.
I don't expect anything from Kap, and I agree it was Hextall's worst move of the off-season (maybe as a Pens GM entirely). I just think Kap's only got one schtick and it happens to be kinda effective on the PK.