Eh... I dunno. If you only get 1 shot at a patch and you mess it up knowing that it is going to cost you to fix it you'd think that patch would be bullet-proof.
It is not like they have to test against a million different pieces of hardware like you do on PC.
I'm confused as to why the testing process didn't catch the bug in the first place though. Isn't that what they are paid to do? Seems like the error is mutual and he should get to put his patch back up free.