Really lots of excuses for the Senate not working on a budget. None of it helps. If the Senate doesn't like the House budget, at least vote on it. They can also mark it up and send it back to the House through the reconciliation process.
Facts are, they don't want a budget, because they will have to be on record for supporting either increased spending or decreased spending, and it gives the Democrats in the Senate political ammo to use against Republicans, and finally, it leaves no restrictions on spending. Spending is what wins votes. And spending is how you reward your contributors and your owners.
See how neatly it works to not have a budget?