Couple of seasons ago, I've been banging on about it for quite some time.
You have to have a legitimate other option for what you are doing with the ball that doesn't involve just not trying to cross the line.
I thought all of the deliberate decisions last night were correct and there was one late that was probably a miss against Port at half forward. The Hartlett one was different to the others because he did have a legitimate option in the form of a team mate standing there, but he put the ball so far over the line, and with such force, it was paid as a straight deliberate out of bounds.