Yeah, their canon was not satisfying at all. There was such potential there for them to even platonically be great co-parents, and the writers just kind of threw it away. They haven't been able to get it back since then. At this point I really want to see some kind of reunion now, just to get more interaction between them to work with.

I think the producers or whatever couldn't bear to even imply the existence of relationship between Matt and Mohinder and told Kring to break it up.

Which would suck, because a Matt/Mohinder relationship would be so much greater than a Claire/Gretchen one, in my opinion. But if you're going to include a gay couple (even implicitly or one-sidedly) in your TV show, lesbians are probably more palatable than gay men, just because of our society's impressions. Still doesn't justify discarding a perfectly good same-sex parenting storyline, though. :(