Exactly what I thought... Some tall, drunk, guy (me) will ruin it for everyone else.
That's probably why the faucet is "hands-free and sensor-activated" :)
I fail to see how that would prevent the problem. If I piss on the tap, how eager will you be to wash your hands using water that flows through the tap?
How often do people piss that far up a urinal? Doesn't seem common from my experience.