I didn't find it hard at all, just not very interesting, so wasn't motivated to learn it (no offense). I think having more open-ended jam tracks would work better.
Alright, prove it. Send in your submission. If it was so easy you should be able to send it in and compete, regardless of whether it's interesting or not.
This was on purpose to act as a sort of implicit "invite only" mechanism. It kind of worked a bit too well.
The next round will be more "jamming" oriented and open ended so more people can play.