You can't really cook a person's rib primal the same way you'd do beef. People meat is not marbled like beef so you'd want to cook it low and slow with a lot of moisture.
So while you could have a people prime rib sandwich, it's not going to have a great texture.
What's why you always smoke ribs. If you have the space, a nice long charcoal smoke for 12 hours for the full billionaire. If you don't have the space, then 4-6 hours for just the ribs.
If you’re throwing ground beef on the grill to char you can skip the slow cooking part as it doesn’t add any benefit. Being soft and tender isn’t what you want in a burger.
That is why texture is important. Searing is an important concept in cooking and this applies to burgers.