Lanefan
Victoria Rules
Truth be told, there's an awful lot of dungeon adventures out there where the only geographical path choices are to go forward, go back, or stay put. I call these "string of beads" adventures, where you need to get to Area F but can't without first passing through all of Areas A through E exactly in that order.Right. Linear =/= railroad. There are generally multiple ways to get to the end of a linear adventure. You aren't forced down the path.
Dullest dungeon design ever.
Agreed.Further, you COULD just leave it and go do something else. You aren't forced to stay on that linear adventure. Generally the players agree to stay on it as you note.