That makes a lot of sense! I'm rarely aware of a ride's actual length as I'm riding it, so I've probably been assuming rides were shorter when I found them unsatisfying. Hopefully there'll be a lot to do within the 6-8 minute timeframe of Railway.
And
@Kram Sacul, have you tried watching a few of the shorts all the way through? They're free to watch on YouTube, so even if you hated them it wouldn't cost you any money–but I found them to be really clever and the animation beautiful. It'll definitely appeal to some more than others, but I really can't see it as a bootleg in any way.