Except that the "Opinion" defense in this judgement is fussier than US law (in US law, opinion is flat-out protected, honest or otherwise, so long as it doesn't directly claim to be based on undisclosed false facts), this reads pretty similar to a US libel case. I get that the two countries have very different legal doctrines on defamation, but they don't seem to be on display here.

Also: a US judge would have been a lot less nice to the defendants.