I think the fact that many people don't go to City in isolation to just watch the football, but to also enjoy sharing the social occasion with people they've shared it with for years, and the group won't all be able to move near each other and peripheral groups, or potentially even in the same stand, is a significant factor that seems to be being played down.
There are people that themselves are not directly affected, but the people around them, who they've watched grow and shared their personal issues, are liable to be either priced out altogether, or forced to move, possibly not as a group, leaving them and the unaffected person considering if they'll bother to renew.
Several generations considering walking away, with no generations following should be a considerable factor in the announced revisions.
God knows how they reached this position in the first place.
It's far from ideal, but one option of minimising the social disruption could be to open the concourse so that there was free movement at the back between E4 right round to N4 or 5