It’s all a matter of perspective. Who is being cut off from whom by the current political fog in the Channel? Whatever the case may be, the providers of law and legal services “made in England” predicted continued light through the fog. The following extract is from an article in the Law Society’s Gazette published nearly a year ago now on 2 December 2019:

Brexit will not damage the legal status of England and Wales, the Law Society has said, citing the flexibility and stability of English law. In a report published today titled England And Wales: A World Jurisdiction of Choice, president of the Law Society Simon Davis said he is ‘full of optimism that England and Wales will continue to flourish as a global legal centre of choice’, if Britain leaves the EU. He writes: ‘The benefits of choosing English law have not changed. It is flexible, allowing businesses and individuals to tailor bespoke agreements to fit their specific needs, offering commercial freedom.’ 
Davis also refers to the calibre of English and Welsh judges and lawyers, the advantages of common law and the widespread use of the English language.While Brexit has added ‘further complexity’ to competition in the legal market, ‘there are some absolute certainties that will continue and are at the heart of England and Wales’ success as a jurisdiction.’The report states that English law is ‘flexible, predictable and stable’ and can ‘arguably evolve more quickly than statute-based law’. It adds that English contract law is ‘largely unaffected by EU law’ as it is based on common law.

Only time will tell if these optimistic expectations of the (English & Welsh) Law Society will reflect the future reality. English weather can be very changeable and weather forecasts unreliable.