I wonder if some people just want to pick up on things simply because it's Dawn who's doing it. Like it or not I've seen other presenters take things part way through a demo to show the camera so we can see the detail better, and in fairness (the time I remember) Dawn picked it up while Barbara was looking for something before carrying on. Plus there are a few presenters who are far more 'look at me' while the guest is just standing waiting.
As for one rushed demo at the end - hardly a new experience on C&C, regardless of who the guest and presenter are.
Give the woman some slack - she's learning. Most would agree Leonie is brilliant to watch and she didn't start out like that, she too started as a crafter and became a presenter second.

Jan