Well it didn't quite say that did it. What it actually says is, it might be easier to source british varieties rather than foreign i.e. apple cider vinegar is probably produced more widely here in the uk, where as balsamic is not. As for the tomato passata, it was pointing out again, that it might not be available because it is mostly EU produced. Yes it was a bit more Middle Class than saying 'make sure you have beans and corned beef' but it is trying to reach a certain audience, who maybe have their heads in the sand a bit shall we say?