Flop sizing is fine. Maybe too big imo. As long as you're pricing out flush and straight draws you're fine. I think a lot of people put too much emphasis on betting really big on these types of boards, which shouldn't always be the case. You could fold out Tx, JJ, all draws, etc. You want people to call as long as you're giving them a bad price. With that said, there are 2 other people in the pot, and any cbet is going to look strong with this board.
If you put BALDGUY exactly on J9 or 96 we are neutral EV if we call and OUTFLOPED folds. We need ~33% to make this call. If BALDGUY only ships with sets and straights here, we're in trouble. But seriously, we have set on a board that's drawy where people can semibluff. It's not even 1 buyin. If BALDGUY ships with anything other than sets and straights we need to immediately call.
Think for yourself. Question authority.