They leave out that this is important protection against zombification, too:

Cremation to be replaced by eco-friendly freeze-drying of corpses
It brings a new meaning to the phrase “dust to dust”.
Funerals in Britain could soon end with the body of a loved-one being frozen to -196C in liquid nitrogen and then shaken until it disintegrates into powder.
The process – known as “promession” – could be the answer to the dwindling amount of space in Britain’s cemeteries as well as being more environmentally friendly than cremation, say campaigners.