Despite its shortcomings, an oven was a mandatory feature when we were shopping for a TT. Our popup didn't have one, but my brother-in-law's does, and it was used for just about every meal, if not for cooking something then for reheating something that was precooked at home.
As far as campfire cooking, for me, it looks more fun than it actually is. I didn't buy a $20,000 TT so that I can still cook like we did in Scouts. We are very lacking in hardwood in the west, mostly just fast burning pine, which isn't the best heat source for cooking. And too often there are burn restrictions in the Rocky Mountain region that prohibit open fires of any kind. There are areas which will at times even prohibit charcoal grills.
I'll use a campfire when it's allowed for ambiance, and for s'mores and weenie roasts, maybe toss a couple of foil wrapped potatoes in the coals to bake. Anything more complex than that goes on the grill or stove.
2016 F-150 XLT 4x4 Super Crew 3.5L Ecoboost
2017 Jay Feather X213