It doesn't take an expert to figure out that the problems you caused back then are probably going to cause things to fail prematurely. By your line of reasoning, an owner can run an unsafe tune with the wrong plugs that runs lean, misfires, stresses parts, and causes problems; but as long as he removes it, things should be fine for the remaining life of the car. I can't tell if you're delusional, ignorant, or just being deceptive.
That's fine though, just keep deflecting while you're waiting for your car to be fixed under the warranty. Hopefully you learned your lesson and once you get your car back, you'll either pay someone who knows what they're doing, or you'll stick to modifications that aren't over your head. Good luck, Scotty.