The staff and readership of The Guardian never liked the Iron Lady, and even her eventual death won't change this. More significantly, hindsight won't change their minds, either, as you can see from the report on the government's decision ( Bold is mine):
The first since Sir Winston Churchill's in 1965, the funeral would acknowledge the exceptional impact of her 11-year premiership in reversing the decline in Britain's postwar fortunes.
As such, it would be certain to prove controversial among the many people who lost their jobs during the "Thatcher revolution" which reintroduced market forces into many fields of activity and for which she has not been forgiven by some.
Animosities are forever.I once had the honor of meeting Lady Thatcher for an hour or so, when she visited Yad Vashem about ten years ago. In my capacity at Yad Vashem I had occasion to meet many world-famous people. Lady Thatcher was far and away the most striking of them. I've encountered charismatic people, but she had an aura of intelligence, nay: brilliance, such as I've never seen.
Update: the decision has been put to poll on the Guardian's website. As I write, 81.4% of the website's voters feel such an honor for the "Iron Lady" (their formulation) is wrong. Of course, the decision has already been made, and anyway, we wish Lady Thatcher many long years; perhaps if she dies at 120 even the Guardian gang of 2045 won't remember why their grandparents were so churlish.