The issue with the "cooperative mode" is ruining the Clans rating, and the oscillator has nothing to do with it. As always, you are trying to get away with substituting concepts and hoping that no one will delve into the essence of your reasoning. It won't work.
And what do you think is the reason he defends his calculation method? The reason is one: he is afraid that more agile experts will outpace him, and he won't even have time to understand why... Although now he will say that he has nothing to fear... :)
Added 3 minutes ago
Where does this self-confidence come from? If you are the leader in the General rating of all parts, who says that you will remain "ahead of them" after a certain stage in that rating calculation system, let's say OFA? Who will you compete with if you are in... at the bottom of the table?