This is a hot potatoe but here goes.....
I think he is guilty and probably has done the right thing being that it is a big bank that does not want to attract negative press,
saying my thoughts out loud he is guilty of airing a joke/comment which should have been private between friends not a business meeting discussion.......
the above comment may attract a further dicussion but I am only saying what happens in my circle of friends at work and at rest and am sure it works both ways ........