But the guy in the interview said that the rival system was going to be like Metroid Prime: Hunters. If that's the case then rivals will still be able to join hosted matches and the game modes won't be restricted to a few types. I guess we'll just have to wait until mire details are revealed or until the game comes out.
Remember those in prison as if you were their fellow prisoners, and those who are mistreated as if you yourselves were suffering. Hebrew 13:3 (NIV)