I absolutely agree that it shouldn't be a roundabout; much less with a road name on it! I was round her a few months ago and, as I recall, the directions without a roundabout were fine.

Putting a road name on a roundabout doesn't break routing. It does, however, make a mess of the instructions. As you know, you can have up to 3 instructions as you approach a roundabout depending on distance and speed. When a roundabout is named, some of them change from roundabout instructions to "turn" instructions and, as far as I remember, the on-screen instructions in the app don't match what the TTS says.

I count 3 missing or disconnected entrances/exits, including the West Ramp Coach Park. They should all be present and correctly connected: as PLRs, they will prevent unnecessary jams caused by any Waze users who take those roads. And, of course, if the whole junction isn't a roundabout, there can be no possible confusion/argument about exit count because there will be no exit counts.

All down to 3 - let me know when you're done.