Do you not have the option to self-publish, though? 38 Studios did so on Steam with Kingdoms of Amalur and they were also a part of the EA Partners program. Just wondering.
We, as Respawn, are the owner and developer of Titanfall while EA is the publisher. Thats the extent of what I know.
What people need to realize is that every single EAP set up is different from the next. What EA and Insomniac had for Fuse was most likely very different than what they did with Epic/Bulletstorm, or Crytek/Crysis, and now Respawn/Titanfall.