Yes, i do agree co-piloting can be used as cheating in some cases.
However, do you have any physical evidence or even speculated evidence of any specific person/player that uses this boosting phenomenon?
Also, who is to say it's not a coincidence?
lately, it's becoming more and more often that i get placed with the same player in arena.... not that i really cared but they win almost every time (probably cuz i suck)
I could be just people seeing some weak player that is close enough for matchmaking and hack the system so they only get placed with weak players in arena (my speculation). Would this count as the boosting phenomenon?
But since matchmaking is supposedly "randomized", it could very well just be luck that doing that (not your speculated cheating, mine only)