I think it was a bit of both but more just being honest and venting his thoughts in the appropriate way.
Didn't it always used to be 'state the name of your nomination, giving full and frank reasons for that nomination'.
He did that, named her and then went into detail as to why. Only difference was, it was to her face but then I'd have thought she'd have liked that?!
It was harsh, and quite nasty but I do think it needed to be said and i admire Bobby for doing it calmly where everybody could hear it, including her rather than sniping.
It was no worse than she has said to, and about others.