It's also possible you didn't run into the bug, chrissie.
The archived JA review says
Yet, in an oversight that should have been corrected in the Director's Cut, there is one puzzle which, if solved out-of-order, could possibly prohibit the player from finishing the game! While I personally did not undergo this misfortune, our good friend Mr. Bill of Mr. Bill's Adventureland did...
So the JA reviewer didn't run into the dead end either, and whether you get the dead end depends on what order you do the puzzles.
The worst game I know of for dead ends was Hitchcock: The Final Cut from 2001. I think it was gatorlaw who found 5 dead ends in that game.