Very interesting but it seems that to fully explore this and other similar sites they will need to develop underwater robots that are capable of doing underwater what archeologists do on land.
Technical answer without looking would be that either they're sending the data as an octet stream or Chrome is interpreting it as such. Works for me, go figure.
I don't think so - that's more based on the Hebrides, with a hint of Faeroes mixed in. Doggerland is in the North Sea, not the North Atlantic, so while an alternate history leaving a few sghrs as remnants of the ancient Doggerland would give him a plausible alternate source for an extra island in the British Isles, the location's wrong (although maybe you could argue Inner Qwghlm is a bit more like a kind of Lindisfarne analog, so... maybe...)