It was pretty lame, letís be honest.
PMQs is PMQs and is the opportunity for Parliament to try and hold the Prime Minister to account. There is no way that should be aborted because Blackford wants an immediate vote.
Blackford could have requested an emergency debate to follow PMQs and almost certainly would have got it, but instead we get a publicity stunt, much like the post-election stuff with the clapping and sitting in the official Opposition spaces. Stuff that makes the TV news but glosses over a lack of policy detail.