The idea sounds like a great traveling accessory. There isn't always running hot water available and then shaving becomes a rather unpleasant experience. Yes, almost always you can boil water somehow, but that can be rather inconvenient. So while I agree that it doesn't make much sense for an everyday product, it certainly is great for traveling or camping.

I am nowhere near qualified enough to comment on the chemistry behind their idea. It sounds bad but so do a lot of other things that are harmless.