Gibson rarely communicates with the fans, during the good times and the bad. He's infamous for not giving interviews etc.
I'm sure he'll know that he's made mistakes, particularly with some of the managerial appointments he's made, but he can hardly come out publically and say it. It would be disrespectful towards a club legend if he said that in hindsight appointing Southgate was the wrong decision.
I do agree with fans however who are saying it would be nice if we got a bit more clarity with regards to why the club have to charge such high prices for season tickets.