Andrew, really? ;-)
I think this may end up being a pyrrhic victory. Confidential parts for court rulings are not something you want to see very often. Time for an FoI request, methinks.
But this just a game of whack-a-mole. Until I read an article about it I had never thought of using Kodi for streaming stuff: together with a Pi it makes a great little media server for my TV so that I'm not at the vagaries of the manufacturer for software updates, codec support, etc. Now a lot more people know about it. I haven't streamed football matches for many years – I found I had better things to do with my afternoons – but I remember that even then there were other options such as getting the streams from different satellite signals and would expect these to become popular alternatives again.
As for blocking: well this might the be the step that encourages the mass adoption of IPv6 as I reckon trying to block anything based on that could turn out to be rather hard.
But at the end of the day: there is a risk of pricing themselves out of business. If things become too difficult and or too expensive, people may end up deciding it isn't worth it, even for something as emotionally charged as football is for many people. FCUM