I'm gonna suggest that you find a way to ensure each track you submit follows the minimum runtime. Otherwise if I don't stay firm to the rules then other people might ask for exceptions and it just wouldn't make sense given the length of this jam.
You should still be able to edit your submission with new iterations of your tracks.
Additionally, looking at your submission, I would also suggest you add a link to an actual streaming service (not just your Itch account). That way others can more easily listen to your music.