@delroth My anecdotes come from observing people leaving the train at random mornings in the winter, mostly on weekends; I'd've estimated at least 30ish percent to be going directly to the bus stop.
That said, that doesn't affect the outcome: it's easy to get to/from Einsiedeln. It only implies that the outcome is likely easier to achieve if the bus network is there already.
@robryk I don't actually know -- Einsiedeln definitely has an above average amount of local tourism and the area around the station seems very "alive" in terms of local businesses. Not sure if there are good stats available at that granular a level :-)