Why did the Sun make political capital out of a woman’s grief?

The Letter from Gordon Brown in which he mis-spells the name of Guardsman Jamie Janes
Gordon Brown has telephoned the mother of a soldier killed in Afghanistan to apologise after apparently misspelling his name in a letter of sympathy.
Guardsman Jamie Janes, 20, from Brighton, East Sussex, was killed in an explosion in October. His mother Jacqui called the letter a “hastily scrawled insult”, but Mr Brown said he was sorry “for any unintended mistake”, adding that his writing could be “difficult to read”.
On the one hand we have a man who privately and personally expresses his sympathy and condolences to the bereaved parents, on the other hand we have a women who has lost her son and is brimming with indignant anger. I can see no wrong on either side here.