I think they should follow suit with some of the other extremely spicey foods. A retailer that I used to go to made you sign a waver and required that you prove that you were at least a certain age to buy it. Part of getting the waiver to sign was being told what it can do.
I didn’t buy the hot sauce myself, but the staff explained that it could legitimately burn your skin if you left it on for too long. I wish I remember what the sauce was called.
I was shocked at the time that you had to sign a waver to buy hot sauce. It was a weird concept to me. Incidents like this must be why. It makes sense, now that I think about it.