I understand all of that. But that said their are a bunch of meat grades and general meat qualities. If you have a butcher, for example, that you are comfortable with that always has a consistent meat product, then yes, if the meat generally finishes at some magic therm number of 205F, then you can be confident in that. However, if you are shopping everything from big box store to local, you have a large difference in the meats, not only grades but general quality. It’s all fine, but Always, Always probe the meat for tender, never cook any meats to time or temperature alone, always probe for final doneness with bbq like brisket or pulled pork, prime rib and steak for example are a different story because you want rare, medium etc…. And temp alone controls that level of doneness, but with traditional bbq meats not so much at all, unless you have a meat supplier with meat of even quality. Otherwise run your pit and probe that meat for the finish.
Brisket, for example, can probe tender anywhere from 195-210. It’s a range, not a set value.