I had a great idea for a RE and then I got the developer page and found that you had to have a company (or be part of one) to develop extensions. If Apple can have individuals and companies submit apps I don't see why Propellerheads couldn't. You'd still be the gate-keeper for RE approval and release.
I live in California and it's quite cost prohibitive to start a company just to develop a RE, having a CA company costs $800 minimum even if your company makes $0.
Reason has a large hobbyist user base, let the people in so they can make great REs