From a member of Paris local government: «Tomorrow, we'll be saying to motorists, “Here's where you can drive, on this car-lane.” Everything else will be for pedestrians and cyclists.»
Not really, for now it is mostly "here's the bike lane", because the street is attributed to cars by default. So this quote is about reversing this mind set.
Yes, I think you're not getting the point, it's about making the default for bikes and pedestrians now, and treating cars as secondary users, that have their smaller delimited special lane.
As I get it, it's about shifting the perspective from everything is for cars and pedestrians are an after thought to something like everything is for pedestrians except this particular piece of road where cars may drive. From "car first", to "pedestrian first".