It doesn't, no. If you do it the way I described, you can't actually get the nozzle at an angle where you could target your balls or legs. It's not as low down as the beam from the built-in bidets.

On the first few attempts, you'll probably hit your cheeks more than you'd like, but that just rolls down the cheek until it hangs vertically and then it drops. I'm still seated when I do this, so my legs are more-or-less horizontal.
And well, with a tiny bit of practice, you hit the in-between every time, where the water is stopped pretty effectively and then it drops in the same place where you dropped the nuke.

I can understand the concern, as I had the same when I first tried it, but yeah, after the first few days of learning, I never splooshed the floor or my legs or my balls. I think, I splooshed my cheeks maybe once or twice when I was really sleepy, but that's about it.

it's a bonus, if the balls got splashback on them or dipped into the water (happens to me quite often unfortunately) they can get a rinse.