This tech is on thousands of bridges around the world, has been for a lot of years now, and yes, millions of people have passed it, and we haven't heard of any

This tech is on thousands of bridges around the world, has been for a lot of years now, and yes, millions of people have passed it, and we haven't heard of any incidents of passengers touching it and causing big issues... so I would say whoever engineered it knew what they were doing and don't need the Internet commenter expert knowledge...