Maybe not a 'lucky' punch but Jardine didn't look good at all up until that point; IMO he actually looked very uncomfortable on his feet, just like he did in his recent loss.

And I think we're being a little harsh on Griffin, for a guy with horrible striking and a wide open head and no ground game he's never been knocked out by a punch and has done pretty well. (i still think he's overrated but he's no slouch)

Honestly I think Jardine and Forrest both are being fed to the lions now. Back before the PRIDE buyout they were UFC's future, but now they're just step up fights for the big names.