Who is the KV55 mummy?

In her article DNA Shows that KV55 Mummy Probably Not Akhenaten on News From the Valley of the Kings, Kate Phizackerley explains why she believe the DNA evidence points to the KV55 mummy not being Akhenaten, contrary to the views of Dr Hawass.

Joyce Filer who has examined the skeleton also believes it shows a relatively young age at death, which is not consistent with what we know of Akhenaten.

What do you think?