This is a massive undertaking... building a whole language + IDE + engine from scratch is insane.
I am curious: what made you go with a custom language instead of just embedding Lua or something? Was it a learning thing, or do you think Exp brings something Lua (or GML) doesn't?
One idea. May be not all the visitor understand the potential of your tool when they reach your page. An introductory explanation could be helpful (just an idea)
Probably a silly question, but ...: if it's optimizing itself purely inside a simulator, what keeps it from just exploiting the simulator's glitches to look good on paper, while not being so good when it hits the real world?
It might be because no interested party is using that piece of news to move market. They have enough with other news to do it. Just a practical matter (or may be something else, who knows!)