It's not all rosy though is it? Ticket prices and the supporter/club disconnect are major causes of disillusionment for me with City at present, and I know I'm not alone in feeling that way.
I don't agree with what he wrote, and I'll be at Wembley (like you said, things have rarely been going so well on the pitch), but as part of a wider picture: seeing some of the highest paid players in the league pull on a City shirt, stroll around and get meekly turned over at home by a group of hard working yet largely average players, when you pay a fortune just to watch them, then yeah, I can understand that disillusionment taking a firm grip on the senses of some blues.
We're in a bizarre situation at the moment, because things are going great from a football perspective in respect of our modern history, and are potentially set to become unprecedented with Pep on his way, but there has never been a period of our history in my lifetime where we've mattered less to the club as supporters than we do now. For a single example of this current state of play look no further than the recent news of our club suits opposing the proposal to cap the price of away tickets, likewise they stood opposed to reciprocal agreements between clubs to aid away supporters.
I think his post is likely a reflection of that wider disillusionment rather than a knee jerk reaction to a single result.
It's something we need to get to grips with as a fanbase and club, because it's going to irreversibly change our match crowd if it continues.