ball launch and boat skip is similar can be done and almost same distance forward.

not rng based, just really precise

As jakolenjoyer said, the boat skip or rather coined "The Stowaway Skip" is not RNG and is a balance of spamming space, camera setups, and various visual elements. (I've not performed this myself, however I've seen various of Distortion2, LanceSRL and others do this pretty consistently with their balancing).

As for the soccer ball skip/jump or "Ball Skip" it was voted by the community to be banned in all of Any% (With Launch & Launchless). I've performed ball skip in Elevator% and can say it's a bit more "finicky" and is really how you land and your pervious momentum to get the right launch. Keep in mind this was a voted decision by the community.

The glitch increases speed or opens up fall guys new strategies that can still be performed consistently.

In video games, RNG Sprunki Retake is often used to determine the outcome of events, such as whether an enemy will attack or whether a character will find a rare item.

If ball skip is RNG-based Sprunki and functions similarly to boat skip, I can see why you'd argue for its inclusion in Any% categories.