I think this is great.
When I went inter-railing around Europe, we actively looked for overnight trains and long, slow journeys. If we could get a 10pm train to the next place, for 8 hours of journey, that was a night in a hostel saved!
We took the train from Venice to Innsbruck (highly recommend both places). It was a nightmare because we got an 8pm train, arrived a little after 2am and found (predictably) nothing was open and basically laid on the stone floor outside the station for 5 hours trying to sleep. A 9h journey on a nice warm train with a seat, would have suited me fine!
Similarly, here in the UK, I took a sleeper train from London to Exeter regularly. The train would arrive at around 4am but didn't leave Exeter till 550. So you have to decide: you could be woken at 4am with breakfast or at 540 with a coffee and 10 minutes to get off or travel on to Cornwall. I always picked 540 because then I'd get 6 hours sleep and remain awake the rest of the day. The alternative was to get up at 4, walk home (30 minutes in the cold and dark), then get into bed and get another 2 hours. Who wants that?
I know it's hard to suit everyone, maybe some people are desperate to get to Exeter or Innsbruck in the early hours of the morning when nothing is open. But I imagine a longer overnight journey and arriving around the times people get up anyway works better for many more people...