I had a phone conversation with someone at Openreach because a network defect was raised and I wanted to chase the status after the visit (I supplied a photo via email). I'm paraphrasing a bit here, but while it looks a bit untidy and isn't ideal, they don't mandate it being separate (in other words, the CP can do it if they choose). I could be wrong, they could be wrong, or perhaps it doesn't matter in any case.