I'm no big fan of Johnson but man people have gotten stupid about him. I doubt there's more than 8-10 guys at the club who have played more games than him, he was at the club over 10 years - and clearly the club didn't want him next year (and that's their right) because they managed him out (without having someone to replace him with) so it's not disloyal for him to seek a release in those circumstances.
It's absolutely disloyal, he was on contract.. that doesn't give him the right to the club wanting him beyond that deal.
But really, I just don't care. He was a really good player for us, I was disappointed that he left.. but I'm not really interested in schadenfreude just because I didn't like the way he left.