The Brady Bunch has reason to be happy because they have retained their strategy of using civil suits as a weapon to attempt to crush firearms makers such as Bushmaster, which would be a huge victory for gun control. They still have that weapon in their hands, due to the failure of S. 1805.
The failures to make Law of the Senate-passed gun lock amdt. and the "gun show loophole" can be swallowed since they only continue existing conditions. As for the AWB ban extension, deep down, the Dems know that the AWB is a sham, except as a stepping stone to the total ban on semi-auto rifles they drool over. The Dems knew that they couldn't get their new amdts. through the House. The just wanted to kill S. 1805, and they succeeded.
Why not just filibuster S. 1805? Why engage in all the debated and amendments? It's all about positioning and compromising RINOs.
More likely both. The Nastier AWB plan has already been submitted in both Houses. No way will it pass *as a stand alone bill", but the language is there waiting to be amended into some "must pass" legislation. I don't think Brady Bunch per se cared all that much about the liability bill, since they were losing in court anyway for the most part. But I'm sure they consider it's defeat a plus, since now they can continue to use George Soros money to try to bankrupt gunmakers.