Does it really though - one flat thing vs. a bunch of jars and packets, or at least a bag of pre-portioned toppings and one of oil/sauce? In addition to your pre-made dough + a rolling pin and mat of course. Unless it's supplied pre-rolled and part-baked, which apart from being even worse and more significantly diverged from what you could make (fresh) at home, means you've got the flat thing anyway that could have been pre-topped for approximately no extra space cost.

But anyway, no I was surely obviously not responding purely to the camping anecdote, nor was other commenter making it solely about that, thread is about pizza, not backpacking.