I would call from the BB in this position with those pot odds with pretty much anything. It costs me just 8k to take a shot at busting two players and getting in the money.
Not only were the pot odds favourable, but in the BB I would think that the short stack would make this move with much less than what he actually had. If I put myself in the position of the BB, I have seen the first two players fold and the short stack move all-in. This is not necessarily an indication of a solid hand because the small stack is in the dead zone with an M of 1, and with a chance to be the first to enter the pot I would expect them to make the same move with garbage.
Then another small stack moves all-in trying to isolate the short stack. From my point of view, the small stack has come to the same conclusion that I have about the short stack making the right play regardless of their cards. I would then think that this small stack has some kind of hand, and given my 79o I would have to think the best situation would likely be overcards, with the worst being an overpair.
But with 5-1 pot odds and the chance to bust 2 players at once, the call is an easy one for me. It may be 20% of my stack but the blinds are big and even the biggest stacks only have M's of around 6 so they are almost in the red zone and have to be more aggressive even though they have big stacks.
Tough break though, you played it correctly in my mind but you were outdrawn.
