**TRIGGERED** LOL
Do you normally form your opinions and beliefs off of one report?
Sure did read it, a small sample of daily driven cars isn't that compelling to me, especially since it's not over a long period of time. Using a different oil each oil change, doesn't exactly follow the scientific method, does it? I don't expect one oil change of synthetic oil to magically make a difference in engine wear over a 4000mi sample. When you have an engine being abused in extreme conditions (offroading), high performance oil does indeed help. If you understand the differences in conventional and synthetic oil, you understand that synthetic is superior in every way (except the slight price difference).
I do recommend you read through all of these chapters if you would like some data:
https://www.bobistheoilguy.com/motor-oil-101/