To be honest I don't really see how those problems listed are any different from doing the same thing with another job... Seems you are all blaming the job and not the players themselves, kinda disappointing argument really. In my honest regard I believe the mutant class should stay, there is nothing wrong with the job at all and the comment about getting rid of it would bring better RP is stupid since it's basically another unique way of RPing.
Also it really isn't the jobs fault that the players are bad, there is bad players everywhere mucking up different jobs. Heck I see many gun dealers running around outside their shops, buying themselves guns, helping police officers raid and all sorts. Guess we should ban Gun Dealer job next... Pretty useless anyway since we got the crafter job eh? It's literally the same that can be said for other jobs that people abuse, it's the player not the job.