Because the core team has been reluctant to do any PR around the successes of RC4 (it works outside of a few edge cases) prefering to wait for everything to be finished and to their liking. That won't happen until opensource which is 1-2 months in the future. Whether this is a good idea or not can be debated. Personally, I don't mind as no hype=good buying opportunity.

So since the only people who really understand the status of the coin are supporters who are already invested (just look at the post with the Facebook dialog to see the level of understanding of the "masses"), the price is down and there is not much interest.