I'm surprised it's taken her this long, I thought she would have gone across well before now. She's a deeply unpleasant individual, in my opinion, but she's perfect for Reform. I'd not be overly shocked if Priti Patel was the next to defect.
The Conservatives who have gone across the floor, I don't think make it any more likely that Reform would win a GE, but they do make it less likely that the Conservatives will.
Farage is going to have to be careful soon about how many of them he takes, as I have no doubt there will be more wanting to defect (in the interest of self preservation)
There is, according to Mr Farage, a "big name" from Labour defecting this week as well, so it'll be interesting to see who that is, if he can get a few Labour moving across, then it really does put the cat amongst the penguins