I don't think he's bottled it..
He wanted to become world champion, he did that..
Don't think there's any bluff in what he said, in his video he said he knows what he had to do this year to win and doesn't want to put that effort in again, effort maybe meaning being away from his family more than he'd like..
Again, going out on top, on your own terms, can't beat that!
I think the minute he last last year he was hard nosed and maybe that is not him naturally and putting it in is an effort
I mean it takes some things to make hamiltojn angry and when he gets angry is his supreme... if he can't do it all the time well... rosberg wooke up and realised he'd need ot be ruthless and cut hamilton off to do it.
a) mechanics.. i bet rosberg had a hand in it
b) crashes. before he would back down. this time he banged wheels
c) quali.. much better this year.
IMO if rosberg knows he hasn't the hear tin him to grind it another 20 race season fair enough.