CITING HARRY- Either way it's mathematically close, so it's not horrible to call or fold. It's a matter of
a) how big of an advantage it actually is if you win the hand (i.e. do you play a big stack properly) - Most players do better with a large stack, you can play a looser game and have more +EV spots with marginal hands while the blinds are that low, this is a factor I like
b) how big of a skill advantage do you have over the field (so you can wait for better spots) - I tend to think I usually have an edge over 70% of the field of most MTTs, dont know about the Sunday Million or the Big Tuesday but for average MTTs I feel confident.
c) how important the buy in amount is to your bankroll - This is were my logic encounters more problems with call, I assume thats my biggest MTT of the day and I would certainly tilt to lose on the 1st hand on such a rushed and forceful decision.
Lets take into account here, that we dont know nothing about our opponents, we dont know how shitty they really are and is very different to know how to act KNOWING NOW what they were holding when they pushed in... now that we know it looks like a +EV opportunity, but the correct play is what you do not knowing and I don't like calling in that spot against AA or a flopped set... is a terrible spot against flopped set.
Couple thoughts.
a) Yeah any player has an advantage with a big stack. Question is how MUCH of an advantage? Do you think you can run over this field with it or not?
b) Sure, confidence is great. But being realistic. What I'm saying is I'm more likely to fold it in a donkament and more likely to call it if I was playing a high buy-in MTT against top pros.
c) +EV decisions are +EV decisions (not saying a call is definitely +EV). They might occur on the first hand of the tournament and you have to be willing to take the chance if it is correct.
As far as whether or not it is a +EV call mathematically, it depends how you range your opponents. But you are not in a "terrible spot" against a flopped set. You likely still have 25%ish. And I'm leaning towards it being less likely that at least the original shover has a set, I'm thinking more like KK or AA.
So against the original shover, if you range him at KK, AA, or sets, you have well above 25%.
Like I said though, the problem is that one of the callers probably has diamonds, which does drastically impact your equity as it reduces your outs.