Yes I heard about this!
It was during a branch or special visit(?) talk beamed into local Kingdom Halls on a Saturday afternoon a few weeks ago. I think the speaker was Flodin but I could be wrong. He said the British think they are superior. It could have been a joke that went flat, or he thought he was making a serious observation for the brothers to "work on". Apparently some took offence. Less so perhaps in Scotland because many Scots don't identify as British anyway, although as an American he's probably oblivious to that nuance.
Yeah it was during the Flodin talk.
https://www.jehovahs-witness.com/topic/5770009745817600/programme-uk-branch-visit