i think mod in general as long as it doesn't give any unfair advantages like mention before i'm fine with the idea.

One other thing i would like to mention, runner in general need to keep in mind that run are meant to be watch by other so not making your game look like a shitshow should atleast be strongly adviced.

I don't think it is the case and i could be wrong on that but i don't think i will make verifying run any harder too so why not.

Since you don't trigger the death cutscene the game doesn't consider it as defeated so it may not be against the rule per say but i still don't think it should be allowed.