I'm just noting that the American concept of libel and the British concept of libel are wildly different in practice.
Also: a US judge would have been a lot less nice to the defendants.
Its expensive and painful to bring and defend a libel claim.
In the UK, the defendant must prove the statement was true.
In practice, this makes the UK setup pretty nasty (long, expensive, high risk), even when it arrives at the correct result. https://en.wikipedia.org/wiki/Irving_v_Penguin_Books_Ltd