I'm no controller in the UK but here's my thoughts, I would think she would have said something like: "Seven miles from touchdown, prepare to begin descent", "approaching glide path begin descent". From there on it would be something like "on glide path, on course", "slightly above glide path, five miles from touchdown". That would be close to what the phraseology should be to the point where you would be instructed to take over visually. The altitudes you refer to are on the ASR (UK SRA) approach, like "four miles from runway, altitude should be XXXX. Giving course guidance at that point doesn't sound right but I was USN GCA person.