@ossobuco,
No, I'm saying that the water from your butt is falling on the spigot, since it's directly underneath your butt.
So, when the water drains, there's still any amount of fecal matter that has fallen all over it.
Then, the next person comes along, turns on the spigot which shoots that stuff up onto you.
It's obviously more sanitary if water is coming from above, which you clean with, and gravity takes it all down the drain.
Let's say someone had fecal matter on their hands, and reached under a sink spigot and touched the opening of the spigot.
You wouldn't want to use that spigot until it was properly cleaned, would you? Water coming out of that spigot wouldn't satisfy me that all the germs and **** were gone. I'd have to disinfect it.
That's why if I'm not using my sink, I use my elbows or a paper towel to turn the tap handles.
Now, if every time a person used a bidet, they sprayed some disinfectant solution on the bidet spigot, I'd be ok with that.
But you know that doesn't happen.