Sounds like wishful thinking. Let's not forget the backdrop: the invasive Yoko and the interminable management and legal battles as they fought to decide between Lee Eastman and Alan Klein.
Not to mention Lennon's issues with heroin, Yoko's miscarriage, custody battles, and fallout with Cynthia and to a lesser degree, his aunt Mimi.
Ok, it's the Beatles and we can't ever have too much of a good thing.
Fair enough.