You're probably right.
Shouldn't have mentioned the braking, so good for you. I've hydoplaned a few times at speed when hitting piled up water. Much more dangerous I think than any blowout I've had. Had maybe 5 blowouts, all at speeds of 65-70. The only ones that seriously affected control were rear tires on RWD. Maybe a couple of them. Still had more control than when hydroplaning, which affords very little control. Never had a blowout on a FWD. This is my experience with my cars, and I don't speak for anybody else. Haven't had a blowout in at least 2 decades. I only mentioned the stop sign sliding because I've eliminated hydroplaning for some years by keeping good rubber and slowing down when conditions merit. But it's a similar "loss of steering" feeling. A blowout never gave me a loss of steering scare.
No, I'm the guy people bitch about coasting to a stoplight, preventing them from getting to the left turn lane in time.