Trying to Make Sense of the Covered California Numbers

I've read a number of reports in recent days gushing over the progress Covered California is making leading the nation in signing up people for Obamacare.

But, I am having trouble understanding how the numbers should make anyone gush with enthusiasm.

Covered California, the state health insurance exchange, has a goal of enrolling 500,000 to 700,000 subsidy eligible Californians by March 31,