I loathe poor grammar but whoever leaks a letter of condolence deserves to be shot. The feelings and sentiments in such a letter are more important than the structure (for once) and often those may be writing less clearly than normal as a reuslt of the distressing subject matter
Whoever publicised her letter to mock it is exploiting an opening that only occurred because she tried to sympathise with the family.
That's a strong point. Still... I can see the possibility of someone being pretty pissed off at receiving such a letter (apparently) written by someone who was drunk at the time. Of course I can also the possibility that someone leaked it for $$$$$s. (Did it first come out in a tabloid?)