User blog comment:RA2/Robot Wars Rankdown: Extreme 1 & Series 5/@comment-979907-20180702212859/@comment-2118191-20180702215348

True, however, it still didn't get flipped, and regardless, that was the before-S5 version in comparison to the after-S5 version. RA2 did encourage us to consider all the appearances each robot made, and given what happened in the Mayhem was a one-time thing, I'm willing to let it slide for now. I don't think we'll need to worry about Spirit of Knightmare outstaying its welcome, though. I think most of us will agree that it is the very definition of a "middle-of-the-road" robot, so I have no doubt it'll be nominated back again as soon as it's possible.

Besides, considering how long genuinely terrible robots like Clawed Hopper and Disc-O-Inferno outstayed their welcome in the Series 4 rankdown, I don't think an OK-at-best robot would be too much of an issue.