You confuse adherence with reasonableness.
I am no standard bearer for Tony Blair or the Labour Party. However, neither am I a rabid opponent with a virulent hatred of either him or the party.
Saying that Blair is far from heartless is not an endorsement of him, merely a recognition that cartoon-style denunciation is unhelpful at best, and childish at worst.
Both Blair and the government can be criticised over numerous things, the Iraq war just being one. However, I do not subscribe to the view that Blair (or any other Prime Minister of whatever political view) deliberately and mendaciously plotted to take us into a war regardless of circumstance or evidence, purposely deceiving the entire country. He just wouldn't do it - nor would Brown, Howard, Kennedy, Thatcher or any of the previous incumbents. Attack him for being wrong, not with simplistic insults.
She's as nervous as a very small nun at a penguin shoot.