MP2 is running 59/3, and is a total station pre-flop.
I could be wrong but if this guy calls anything PF then he could potentially have a variety of flush draws and possible open ended str8 draws.
Against multiple villains in a pot, there is often a draw, I don't know if I would've shoved the flop but I would have made it so that only overpairs were staying in with me. If opponents call after your raise, you could be gicing the last guy at the end of the line the right price to hit his draw.