Same thing happens in any sport where you have the biggest budget, the winners are usually the best funded teams.No doubt Sky/Ineos had the best "program" from 2012 to 2019 ... winning the TDF 7 of the 8 years (and most likely would have won it 8 of 8 if Froome hadn't crashed out in 2014.)
What is even more impressive isn't the win total over those 8 years ... it is the fact that they won it with 4 different riders. Who does that? One guy goes down or retires? Just plug another in and win the TDF again. Exceptional!
I mean Pogacar, Roglic, Vingegaard etc wouldn't have to take the juice if they were in Sky/Ineos with the best domestiques ever assembled in history.
Because Pogacar, Roglic, Vingegaard etc aren't in Sky/Ineos they have to cheat to get the wins instead.