On invitations

From Kady's liveblog of the Government Operations committee today:

(Con MP Chris) Warkentin delivers an impassioned monologue on the power and importance of this particular committee during the estimates process; he would hate the committee to become nothing more than a rubber stamp for the estimates.

So are the Cons actually inviting the opposition parties to use Parliament's authority to limit government expenditures - implicitly suggesting that they'd see that action as constructive rather than grounds for an election? And if so, is it about time for some do-overs?