Black's 2 donkey plays

[teddyFBI]

Now I was generally impressed with Andrew Black's play (from what i saw on TV and read on Cardplayer), but I just can't even wrap my head around what the F he was thinking:
a) going 4 bets all-in with Phil Ivey w/ A2s, and
b) calling a re-raise all-in in m/w pot with KJo

Sure, it looks great to bluff Phil Ivey out of a pot on TV (although Phil actually had the worse hand, but there's no way Black knew that), but jeeeezus that was an awful awful play -- the only thing he did right in that hand was show the A2s, which might have done something for his meta-game

The KJ call was just chip-spewing...what on earth is an otherwise solid-seeming player doing making these plays -- just showing off?? If that's what qualifies as good late tournament play, then i am very very far off from ever going far in a large MTT.