Sort of. Yes. Short ribs have a lot of connective tissue that needs to break down. It requires a lot of heat for a long amount of time. That's why braising is the best way to cook short ribs. They will get the heat for the length of time needed to break down that tissue. They just go from tough to tender though, there is no like increased toughness during the cooking process, they are just tough to begin with because of the connective tissue.