Okay so because you think they are cheating in some way, you are going to discredit them and dislike them actively based on nothing but your opinion because its hard to believe? Im not saying its impossible, but dont pass judgement on them until anything is proven.
Injury free season? Happens all the team to someone. Liverpool in 13/14, they also ran like crazy and put out the same team every week. Its a lot easier to do when you only play knce a week and can prepare all week for the game. They never have midweek games and that has helped. They went on a great run the last 2 months of last season as well, not like it started this season. Not sure how you can do anyrhing but praise their scouting for finding Kante, who is a tank. There have been other box to box players before who run all day too, do you question them?