From an engineering standpoint, that funnel appears to have some design flaws. A chicks stream doesn't flow straight down or forward; it goes in the -X direction. This would result in the tinkle backflushing over the narrow part of the cup, giving the user's pants the Fergie look (GIS "Fergie piss pants & you'll see what I'm talking about).
I think one of our resident wimmerns should give this product a test run at our next X-gate. I'm curious to see if my hypotheses is correct.