The point is that block times are so low (400ms) that the effect of having a huge transaction come in and hence frontrunning (ordering transactions) is minimized. Noone would put a huge order they would just put it into 10 different time steps (it would take 5secs anyways) m. This is unlike ethereum for example where your order sits in a mempool like a sitting duck for 10mins before someone decides to pick it up along with some other useful orders to front run you. But yeah still, why do u think traditional market makers like jump have joined solana. Because there is money to be made here just like any other centralized exchange. Jump wants to be for serum, what citadel is for robinhood