Without wishing to go over too much old ground, it seems to me that the problem here was one of communication. It isn't reasonable to assume that 'everyone knew' or that everyone would be content to move seats. Those likely to be affected had a right to be informed in advance, by something as old-fashioned as a letter. As I understand it this may not have been done in advance, so the PR/communications result was negative. The lesson to be learnt is that even what some may regard as, in Basil Fawlty's phrase, "the bleedin' obvious" needs to be spelt out clearly, politely & well in advance. If that lesson has been digested some good will have come out of the matter, which should surely now be regarded as closed.
I write this as one who is not a main stand user and who rarely uses the CSH other than to sit at a certain desk. Both of these are matters of my choice; I have no problem with those who prefer to sit down to watch or who like a drink before the game!