Nitpick: I assume you’re talking about the period that the Dems had a filibuster-proof Senate majority. (That’s not the nitpick.) Their period of full control, by that definition, was later, and closer to four months:
The special election was on January 19, 2010.
This part’s still all too true. Especially because it didn’t pass the Senate until December 24, 2009, less than four weeks before the Dems lost full control of Congress.
Due to GOP opposition, there was no opportunity for the House and Senate bills’ differences to be ironed out in conference committee and passed once again by the respective houses, let alone time for shortcomings to be realized and fixes passed. The House had to pass the Senate bill exactly as it was, in order for it to become law without another Senate vote that the Dems no longer had the votes to break a filibuster of.
Some minor changes that reduced the cost of the bill were passed via reconciliation, but no other changes were possible.