What are you talking about. In 2010 when the budget was supposed to be passed the democrats didn't even submit a budget in to be filibustered. They also had enough majority it would have taken 6 republican vote to overcome a filibuster. Both parties at the time were in favor of keeping the status quo to fight it later....after fall elections.
The filibuster is always bitched about but the party in power never wants to remove the filibuster because in the future when they are the minority they want to use it. Remember a few years ago when the democrats filibusters judicial nominees during Bush, or republicans filibustering gun bans under Clinton. Every time the majority bitches and moans but never changes the rule because they know the pendulum will someday swing the other way and they will want to use the filibuster.
If the media would be less complacent over what a cut is in government baseline budgeting verses absolute dollars I think the narrative would be a lot different for the country. Because even if the republicans came forth with a budget of "No new spending, We will spend the exact same amount this year as we did last year." They would be railed against for cutting 400 billion from the budget because programs have automatic spending increases build into them and the cut that is talked about on TV is not absolute dollars but a reduction in the baseline of the next budget.