That's absolutely true. In my mind - and of course I haven't been there - I can see one of the situations where night flights were the justification for crew to either have a galley party raving about the last ladies night in Dubai (and I had to ask them to be more quiet as all of us in the forward Club rows could not sleep) or to absolutely do nothing apart from the minimum and to focus on the Hello magazine. I had both situations a few times, unfortunately.

[but most of my experiences where rather pleasant with BA cabin crew]

Most occasions were I felt that I am a disturbance as a customer were with AA, especially if not in a premium cabin.