I have it on my nonP X - one of the early ones. The snow is a bit of an issue but I am careful to clear out underneath when clearing the window.
I think they got rid of it for another reason though. The car doesn’t look so great when it is parked and the spoiler is down. It almost looks like a bloated Prius. With the spoiler up it looks much better.
Mine was replaced under warranty. I have to imagine it was a pricey fix for Tesla, since it wasn't all handled in house. As a TSLA owner, I can appreciate why they dropped it.