#3 A loss does not affect Rey Mysterio
Rey Mysterio has done it all in the sports entertainment business and losing to Seth Rollins will not really hurt him. I mean he's in what I'm guessing is the main event of the night and losing to the Universal Champion is no matter of shame, to be fair.
Mysterio has accomplished enough in his career to enter the WWE Hall of Fame when he decides to hang up the mask. In fact, he teased he would do the same in a recent episode of RAW and it was even believable owing to his longevity in the sports entertainment business, over the years.
Had AJ Styles or Nakamura been in the match with Rollins, fans would have said that WWE was burying a current Champion. The same would have been true of Roode even though he's a Tag Team Champion at present.
But yes, Mysterio is likely losing on next week's show.