That's all very cool indeed. I'm extremely glad the alignments have been confirmed.
(However ...
>> As Jan Harding explains, "Thornborough was a sacred landscape, a place of religious worship,
>> and we should try to interpret these astronomical orientations within that context.
I sill think this is open to interpretation. The rising of various stars at certain times could have been used to mark the start of a bullfighting festival for instance, a thing that a henge is very suited to.)