I just finished reading the article and I have to say the thread title is wrong (I know I am rather late replying, but I didn't want to write my impressions until I had time to finish reading the entire article).
Microsoft did NOT save Titanfall. They saved Respawn. Basically Respawn needed more money, and they were reluctant to go back to EA, because they knew EA would ask for concessions (like handing over the rights to the IP). Heck, the short-changed EA by not doing the 360 version and by getting rid of the single player. No where in the article did I get the impression that Titanfall would have been cancelled if Microsoft did not step up.
Also, Sony wanted to co-operate, but not on Respawn's terms. Sony wanted a Vita version, and was willing to work with them on that. They just were not willing to share the specs on the PS4. Respawn did not seem to care about a Vita version.