Juells, not just that. The Mail is aiming for a wider readership, and has a fairly good understanding of their market. I suspect MN posters may be on average more educated, and more urban than many Mail readers, but that does not mean that the Mail political instincts are less accurate.
On this one, their reporting almost certainly reflects the views of their readership, and I wonder if the response they got from early articles helped encourage the Times to take a similar editorial position. As James Kirkup suggests, few in government actually believe TWAW, and I assume editors feel the same way.
It's the Guardian who has a problem. Their revenue is not readership dependent, instead relying on trust funds and donations, often from outside the UK. They can afford to take a forward stance on societal issues, that does not reflect the thinking of the majority. The hope presumably is that society will catch up. If not they are left looking isolated and preachy.
I hope that Sanchez Manning is considered for a journalistic award. Her articles have been consistently clear and well researched.