Actually up north here we got places that fry the hotdogs tip they rip apart like yours did
Maybe poke some holes in the casing so the excess liquid just drains out instead of steaming inside?
If your dog is very cheap filler heavy, they probably swell with the water and will rip the casing when boiled. Probably best to just grill them. The fillers are basically starch so it's pretty likely that they swelled with the liquid/steam