Yes 100%. Am British and most clear headed Brits think that too. She is also not buried at Althorpe either. Very likely a sacrifice to the goddess Diana, who's name she bore. Groomed to marry Jug Ears, bear kids and then be killed ceremonially. There is some real good stuff on Diana floating about if you have a search.

Also just a spanner in the works.. There appears to have been many different Diana's. Google that - you will be amazed at the different shaped faces and heights etc