I wonder if that's true in insanely volatile stocks like GME? People were buying way OTM calls on that stock. Then the stock would move 50% in one day. A market maker would have to be very good at dynamic hedging to keep up with that.
Of course options market makers have one incredible thing going for them. While they have market risk for every individual option they write, their net exposure can potentially be very small. That only works for a market maker, not for someone making a directional bet because YOLO.
Edit: The few times I tried to study what was going on with GME options, I saw a lot of "no bid" on many OTM strikes. So it looks like the market makers were simply stepping away. Which totally changes the market dynamics. If there's no liquidity in an option, a punter's only choice is to hold to expiration? That's financially very risky and also counter to everything we've come to believe about an "efficient" market.