The judgement also describes the UK courts view on the US and German cases, which sheds even more light on why they were pissed of at this: Apple's wording might be technically true, but they're misleading the readers of the note the put up there too (e.g. they seem to try to imply the Galaxy Tab - which is what the UK case was about - was found infringing in the US case; it was not).
They are required to comply with a court order with a very clear intent: To rectify the false impression Apple had created that the Samsung Galaxy Tab infringed on UK law and might get banned from sale.
All the court is requiring is that Apple is not diluting that message by including other paragraphs that are at best irrelevant and at most directly misleading.
I am not following that law if I add "but the surgeon general is a stupid head" right after that. Or "but smoking is totally cool in Europe."
I have plenty of other avenues in which I can try to persuade people that the surgeon general is a mean poopy head that they should ignore.
It's insulting to pretend not to understand this, which is also how the judge feels.