Question Tynemouth WW2 soldier's grave finally marked.

[Notebook]

http://www.bbc.co.uk/news/uk-england-tyne-39678150

The Commonwealth War Graves Commission has now agreed to replace the German headstone with one saying the grave is believed to be that of Thompson.
Mr Erskine said he had hoped to find relatives of the soldier but none could be located before the grave was rededicated on Friday.

I'm surprised at this. Would have thought the CWGC and similar bodies would have insisted on DNA matches before changing the status of the grave?

N.