The point is that the core process is there. We need a process of legal challenge. We need to allow people to challenge decisions that are taken here. Making the change through the Standing Orders removes that right.
The key point is this. It would be ridiculous and undemocratic for Scottish or Welsh MPs to be excluded from any decision that could have a detrimental impact on the budgets of the devolved Administrations. Forty-five per cent of the Scottish people voted for independence and 55% voted to stay in the union. Not one of them voted to cede to others the ability to legislate. It would be utterly bizarre for such a significant constitutional change to be made by a change to the Standing Orders.