One senior NDP source and two Conservative sources say the path believed to be most likely is that some of the NDP’s seven MPs could abstain from voting, allowing the budget to pass.
That's the meat of the article.
The Conservatives aren't in a great place in the polls (compared to last fall) - and they could suffer blowback by triggering an election.
I'm guessing they'll complain about the carbon tax (stupidly) and cost of living issues (rightly) and then orchestrate enough abstentions that the government doesn't fall.