I’ve never really understood why people get so hung up over language evolving. It always has (English is particularly good at it) and probably always will.
If Railway station becomes Train station, so what?
Indeed, I would argue it should. In ye olde days it was called Railway station, as that was where the Railway staff were stationed. Nowadays many stations are unstaffed (the few before were called halts) so no Railway staff are stationed there, so they now all become train stations, this also matches bus stations which are rarely when bus staff are stationed, that being the bus depot.
If bus stations are named after the transport, so should train stations.
In reality of course, most people just call it “The Station” and say “Bus Station” if they mean that instead.