Because console games and PC games are a little bit different?

In multiplayer, every single difference counts. For example, auto aim or aim helping in most console games that works in multiplayer too is unthinkable on PC.

I believe networking engines work differently on PC and consoles.

But for many games, like racing games, fighting games, sports games, it should be possible, I think. And in shooter games it should be avaible at least in coop mode.