They're going to wobble even more now that they've ditched UKTV in favour of Horsey TV, Paramount HD, Vice(!) and Nascar
Only if customers take their business elsewhere. I know it swamped their customer service capabilities for a couple of weeks when they lost those channels, but I expect that despite the extensive anger, relatively few will actually leave. A greater cause for customer losses may be when us unlucky punters are stuffed with this year's inflation busting price hike.