some of what you put up there such as injury prevention is likely true at an elite level but the rest of it is just a fancy way of saying "cheating."

Things like ref influence and game control would be almost impossible to prove even with technology :)

I think the sport would improve a great deal if they were to introduce punishments for diving but also, certain fans would feel as though their club was targeted, which honestly, given how corrupt FIFA is, would be something that very well could happen.