Gosh, yes, I can understand how your friend would feel frustrated.
However, tell your friend not to despair! If I've learned one thing over the years, it's that good pizza can be made with nothing but flour, water, and salt. Yeast is preferable, but not essential.
Remember that all a pizza crust needs to do, in its short life, is hold the cheese and sauce. That's its sole raison d'etre
These humongous recipes that call for 15,000 ingredients are just there because they CAN call for that many ingredients, not because they HAVE to have that many ingredients.
Now, all that being said, I don't have a recipe right off the top of my head that fits your friend's requirements. But, I'll have a quick look around, and also maybe someone else will eventually chime in as well. Don't worry, we will find something--there is no reason anyone should EVER have to give up pizza!