I don't think the author meant that you should never ever use Ubuntu, I think the author meant that this version of Ubuntu's guarantee of LTS is not very good.

I don't think the author meant that you should never ever use Ubuntu, I think the author meant that this version of Ubuntu's guarantee of LTS is not very good. The support for all of the components between Upstart and Mir and Compiz is derived solely from Canonical & co. Further, the patching that will need to be done to the kernel is non-negligible. It's going to be a pain to hold together, and thus support may end up being worse. I think that's the point. Just trying to be charitable.