Probably because it’s fake. Increasingly these “restoration” videos involve tarting up the “before” item to make it look worse than it is. Dunking it in bleach, for example, with create a lot of flash rust that looks really dramatically bad on the car/heirloom/frying pan but is trivially removed with any mild acid or rust converters like Evaporust.
Always be suspicious when the before item has very thin even orange rust on it, and no deep scaling, pitting, or dark brown/red rust.
I’m not saying this video is fake, but more and more restoration videos are. It’s too much of a cash cow not to be abused.
