It was always known. We always knew some players dock up, become inactive or even quit playing when being war-decced.
The speaker at EVE Vegas who introduced the change was just talking BS, trying to make us believe this is only now suddenly becoming obvious. I wish CCP was more honest about why they change their direction. They do claim to be very open to us players, but BS like this can only hurt their credibility.
It was in fact accepted by all and for as long as I know the game. There are many players coming and going each year and those who left because of a wardec are just a part of these.
What’s missing in all this BS is how it’s going to stop players from leaving when they will leave eventually anyway. It’s not going to keep everyone playing suddenly, but players will come and go as they always have. I’m more worried about how this change affects players overall and the health of the game. WiS and vanity items were also thought of as making the game better and it turned out terribly.