[TheWorstPlayer]

Honestly, I think this is an experience thing. The players who play mostly live have played 1/100th the hands (or fewer) of the people who play mostly online. And the live games are generally less agressive, so there are fewer big pots. And going broke is so much more annoying live that if you go broke you have to go get more money or go to the cage or wait for chips or whatever. The online players have seen this exact same situation or something very similar thousands of times. I think that makes a big difference here. The live players are worrying about pot control and not going broke when those concepts are just not that important in this hand. What's important is protecting your hand in this massive pot. Betting 1200 on the flop and checking the turn does not do that. Betting 2500 or just pushing the flop does that. If you bet 2500, obviously you will then have odds to call a push, so that is why pushing would be just as good if not better in my opinion.