This was a document that was a result of the thinking of an elite committee of "progressive" (read: socially liberal, big government folks) and they were merely waiting for the opportunity to have it signed into law.
You didn't think that a document that large could be written in a few weeks, did you? Nope. Most folks didn't know, and still don't know what is in it. That's why Pelosi said "we have to pass the bill to find out what's in it."
Find out, indeed.