Congress has had since early January to do so, and they didn't. So now we get a muddle, because compromise.
The spending legislation will be introduced with a package renewing billions of dollars in tax breaks for businesses and low-income Americans. Text of the 2,009-page spending bill was released at 2 a.m. Wednesday; the separate 233-page tax-extenders bill was released just before midnight.Perhaps with twelve appropriations the outcome would be similar, or perhaps the process-worshippers of both parties peacocked and otherwise delayed the individual bills until another continuing resolution was the only resort.
The result of the secretive negotiations is compromise, with both Republican leadership and Democrats claiming wins.