That’s fine but there are some issues.
Firstly ISP control is a complete waste of time. Where I live they have several ISP level bans on websites, all I did is spend one minute changing my DNS server from my ISP to a generic one Google provides free of charge and it’s gone and ineffective. (Not for the purposes of piracy I would add, they ban a few political sites).
Most importantly you can’t keep increasing the amount you pay to the leagues while simultaneously offering better value to the customer. The music industry did learn that if you had a user friendly and cheap alternative option to the pirates it stemmed the piracy but they took a big revenue hit, both at company and artist level. It’s no less easy for me to download an album illegally now than it was from Napster in 1998, in fact it is easier because my connection is so fast it takes 10 seconds instead of 3 hours. It’s just the legal versions are cheap and more user friendly.
If the next deals keep increasing as they have been, allowing the clubs to spend such huge amounts, they can’t leave it at 18 quid a month and make a profit. Long term something will have to give unless they are signing up loads of new subscribers.