I think there's a big difference between not offering any prayer room at all, which seems perfectly reasonable to me, and offering one that is obviously terrible. The former doesn't really say anything about the putative users (there's no right to prayer rooms as far as I know and from a purely rational viewpoint the entire thing is a waste of resources) while the latter is demeaning and treating them like... well people you think it's acceptable to make kneel down in a cold and wet glorified bus stop*.
It would have been better to not provide one at all imo if they couldn't do it properly.
*I could make a very rude joke indeed here