I have avoided joining in this thread so far, but I do think that the signaller should also be credited. Faced with a very unusual request from the driver that was contrary to all normal safety procedures, s/he seems to have reacted quickly and carried out the request very rapidly. To make clear: a driver asking for a signal to be replaced in front of him and to be diverted to another line, presumably without stopping, is not normal. The signaller would have every reason for wanting to check that they have properly understood the message and that the driver is fully aware of such things as his location and that of the points, etc.
As far as the frequent complaints in the thread about confusing information in the media, which for a while seemed to be the main topic, just think of the situation. This happened late on a Saturday night when newsrooms are working with a minimum number of (possibly mostly junior) staff and the few correspondents who specialise in rail matters may not be available. LNER was, one hopes, not giving out much information and the emergency services were too busy dealing with the matter to give out detailed updates.
At the same time the newsrooms are probably being bombarded with tweets and the like, some of which may be accurate, some half-right and some inaccurate, sometimes deliberately. They have got to try and find a balance between repeating every bit of information they get or saying nothing until they get official statements. It is an impossible job. I know we seem to demand immediate gratification by being given news immediately in this modern world, but the media can’t give out accurate information until they receive it. Just accept that everybody is doing their best: if you don’t need (and I mean need, not want) to know urgently, be patient.