Are you joking right?
That´s why his court behaviour today? did you even watched it? if he would go past Milos most likely he would demolish Kei in F and win this and you would say otherwise
Andy was going for title in Tokyo no doubt about it, simply Milos today played great offensive tennis at relatively fast court + his serving is always what can win him matches, Andy said himself Milos is tricky player, he knew very well what he was talking about, he played him recently at USO - where just Andy happend to play fantastic match and probably was aware that if he won´t play as good it will be tougher - after all he played Ivo here in Tokyo too and almost lost 1st set tie-break despite the fact he was clearly superior player and Milos is clearly better version of Ivo - with better groundgame and right now even better serve
Not saying Andy didn't want to win this tournament but it just isn't that important for him. He was playing doubles aswell which he would never do at a slam.