What you and Brian fail to recognize is the fact that the dealer obviously did not hear the all-in.
I think we both recognize this fact, it's the reason we were called over ...
Nick and Mike,
Unfortunately, in a real brick and mortar setting, dealers miss stuff. It happens every day.
As a floor/TD, it's imperative that you gather as much information as possible from both the players and the dealers. Not just the dealers.
Mind you, I'm going to give my dealer the benefit of the doubt in situations where I get multiple versions. Had several of the players not involved in the hand state that they didn't hear the all-in, then I'm ruling it as a call.
That wasn't the case. In the original post, he states that 8 players agreed that the player stated all-in. To me, that's a consensus of players not involved in the hand.
For me, the decision is easy, he's all-in, back up the flop.