My review is about the workshop ... terrible!

My review is about the workshop ... terrible!
Last year I took my mt 09 to have the service done and on this occasion I also had the transmission (chain, crown and pinion) replaced for convenience and lack of time, usually I replace it ...
Well, why do they hang official Yamaha course attendance certificates in the workshops if they don't even know how to consult a workshop manual? The pinion lock nut was tightened to death, no oil or grease had been put on the thread (resulting in rust) and the safety flange had been sketched in different places than the original locking punch (I had to replace it with a new one). To disassemble it I had to contact a tire dealer with a good pneumatic gun, but if mounted properly, it takes little effort (just think that the wheel pin nut is tightened to 150 nM and a lever is enough to loosen it, while for the pinion 80 nM are enough ... from the textbook).