Calling an all in blind

[young nut]

I was watching the final table of the party Million tournament and I witnessed two fold that seemed very very bad. I don't know if my line of thinking is correct so that is why I ask you to evaluate these hands and tell me if a fold is good or bad.

1st hand, 8 players left, 15k/30k

folds to button who pushes all in for 80,000
SB folds
BB folds?

On this hand there was 125,000 chips in the pot when it got to the BB. He was getting 2.5:1 on his call. This seems like a terrible fold to me. And I am wondering if he should call this without even looking at his hole cards. (and btw, he had plenty of chips, he was the 2nd largest stack at the table)

A similar hand occured later:

MP pushes 88k
folds to BB (chipleader), who folds.
133,000 in pot, 58,000 to call, so almost 2.5:1

Do you call hands like these blind getting more than 2:1?

Also is 2:1 the point at which you call with any hand, assuming you have a few chips you are willing to risk.