I think there are many parliaments where it is unthinkable that you would have anything happening on the floor of the House with regard to the budget without the responsible committee reporting on the budget. I'm not aware of any incidents in the German Bundestag, for example, or in many other western European parliaments, where the lack of a committee report would have delayed parliamentary practice.
So why not just require parliamentary committees to report on the estimates or on part of the estimates? Then they are under an obligation to do so. But you just say that if you don't do it, you're deemed to have reported. Effectively, this means that this part of the budget will not be properly examined. Let me put it more mildly: there is no potential, no possibility, for this part of the budget to be properly examined.
Examination at committee level is crucial. It's not going to happen on the floor of the House. If there is serious debate and analysis of the budget, it has to be at committee level. I would be a very strong proponent for making sure that committees live up to their duties and their responsibilities.