If 50% of the population walk out of a public bathroom without tracking urine on their feet or anything else that touched the floor and custodians have 99% less bodily fluids to deal with, that seems like positive progress. Maybe it will move the needle in ways that are unexpected.
Talk to a local mechanical engineer who does plumbing design for recommendations that are available in your market and their probable cost.
If you are getting noticeable splashback, you have a very poorly designed urinal. The kind that gets architects angry calls from clients.
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I used to work in architecture.
The way I would see this happening is if users insist on it. And we likely won't until we experience one of these in real life, which makes it a chicken and egg problem.
There's also the argument that splash mats are a cheaper and even superior approach. That argument is unconvincing to me, because the ones I have experienced have been mostly ineffective, but it sounds like others' experience has been better. Maybe here in the US we just don't have very good ones? As a country, we've always been pretty bad at anything that seems gross. (Not that it's all that different in the rest of the West.) We have this naive faith in the ability of dry toilet paper to clean that which it can not, and disgust at alternative approaches that actually work. But that's a different topic. (Specifically, solids not liquids!)
If you believe in the broken windows theory, there's not one determining factor: Splashes of urine make the bathroom look dirtier and lead to people not taking care of the bathroom properly.