I don't thinks its apologist behaviour. It's just not quite grasping why she doesn't leave the abuser.
These situations can be really complicated though. We don't know anywhere near enough of the facts about their history, her emotional state, support network and so on, to pass any kind of judgment. And even if we did, what good would that do?
I agree with you that the fact he's a high-profile individual and that the whole thing is out in the public domain now is supposed to make it slightly easier. But as you also said it doesn't mean it is easy, just not as hard as it used to be.
It's an awful story all round.