K9s vs. K7 hand: Was Phil's laydown a good play or a weak-tight one?

[lastchance]

This is just from my lousy recollection, so if anyone can come up with the exact details, it'd make this much more interesting.

Dunno what happens preflop.

Flop comes K, 9, 6, all unsuited, I think.

Annie checks top two pair, Phil leads out with his TPNK. Annie raises, and Phil calls.

Turn is a J.

Annie pushes in. Phil folds. And of course, Phil shows his top pair, Annie shows the nine.

Now, what I find interesting about this hand is that Annie Duke check-raised Phil Hellmuth 4 times earlier, and ESPN didn't show it. Knowing this, do you lay it down the way Phil did? Do you lay it down on the flop? Is Phil making a good read on that hand, or is he being weak-tight?