why does taco bell have such a bad rep? serious question?

People always talk about taco bell causing upset stomachs and diarrhea but I did an experiment and ate nothing but taco bell for 36 hours. I ate 2 smothered burritos one chicken one beef, chalupa supreme with mild and hot sauce, a cantina burrito with steak, a crunch wrap supreme and a taco. I did not experience any stomach ache or diarrhea. All I experience was slightly more gas. So why does taco bell have such a bad rep? Btw the exact order was smothered beef burrito, chalupa supreme with beef with sauces, cantina burrito with steak, chicken smothered burrito, tacos with hot sauce. Its been 12 hours since my last meal from taco bell. I'm 18, 6'0" 147lbs. No known medical problems, no medications prescribed or over the counter were taken.
Oh and the crunch wrap was first