IMO the problem is not the lack of KP2 or GGPO for PC, the majority of the frustration and outrage caused in the community comes from the lack of communication and absolute ignorance from all sides. WB and NRS are not even mentioning it, is like it never happened, we are yet to have any official word on that matter.
The other part of the problem also comes from within the community itself.
People gets discriminated(as if they are not part of the same community) just because they prefer playing on a different platform.
The lack of support from the community as a whole and the lack of communication from the developers/publishers is IMO the root of the issue.
This cannot possible lead to any good as you have guessed already, the community gets split just because of some stupid reasons like "oh, but I will have those shiny new pixels on the screen that you wont have, so fuck you, live with it"
I cannot stretch how stupid this whole situation really is...
PC master race, console peasants, and all sorts of crap like this have to go away really... it serves no good to anyone, its lame, and it makes no sense what so ever, because at the end of the day, if you look objectively at the things FOR ONCE you will understand that we are all love playing the same game, from the same developer, from the same publisher, basically we're on the same boat, just like everyone else from this so called(now absolutely wrecked) MK community.
Here's an example...
Imagine 3 peoples and a captain traveling in the same boat ok? good.
They bought the same tickets to the same destination and they ware all promised the same experience/quality.
All of a sudden the captain decides.... Hey, i'll just throw one of them off board for no apparent reason just because I don't like him/her.
The captain then grabs one of them and throws it off board while the other 2 are watching.
The 2 remaining passengers ware scared from the actions taken by the captain, but they remain silent about it just because they finally reached the destination they ware traveling to...
As a thank you note, the captain then offered them a free hotel and an option to travel on his ship again on half price with all the other extras the comes with it.
The 2 of them quickly forgot about the 3rd guy, and they lived happily ever after.
End of story.
I hope you see how stupid this whole situation really is...