Doesn't each trade require both a buyer and a seller, who buy and sell at an agreed on price? Presumably both parties would be satisfied with the trade so it isn't clear to me what all the fuss is about.
Personally, I always do limit orders, but I would consider market on open/close as reasonable options. But I don't think this is typical, a lot of orders are market orders against whatever limit order is at the top of the book. Normally, that's ok, but it gets weird when things get weird, as seen here.