This is how homebrew parsers should be; and it makes sense, coming just 3 years after Inform was created and making new parsers was less intimidating.
This is a compact fantasy world, with only 7 or so locations. It has a gnome, a toadstool garden, and a mad scientist. It has good cluing, and fun, open mechanics including potions/chemicals you can try on things (nothing complicated).
The only thing I found difficult was that one important room exit was only mentioned once, in one event, with no way to read that text again once it scrolled back. So its important to read everything carefully.