Thanks for the feedback! Not sure if I'll develop this any further, the typing gimmick is probably just annoying and cumbersome outside of the game jam context... But I had fun making it, so who knows.
I was actually thinking of implementing T9, and in this case that would probably be pretty easy (since every room has a list of valid commands, it would be easy to check the current input against all valid commands and figure out which one you're after), my main reason for not prioritizing it was that I couldn't decide on the best way to swap between t9 on and off.
I wish I'd had more time for adding odd options! It was not just for fun, it was partially to avoid the player getting "invalid command" every other sentence, but also to fill up the list of commands shown by the help command so that it doesn't just give away the correct options.
Thanks again for a helpful comment!