>>/12009/
> pull up bars that rotate

First of all you can get some foothold on them but second of all I dunno if I can even do 1 pullup on a rotating bar since I've never tried and I know they are notoriously harder to hang on at least.
> 1 full extended body length away

That's literally impossible to breach then because even if you do a full muscleup you're still way away from the second rung, so if they're impossible to stand on you cannot reach the second rung.