One thing I don't see being taken into account in articles like this one is that the vaccines will not be 100% effective. The US FDA has set the bar at 50% effective. So even people who get the vaccine can still become infected. Maybe with less severe disease and less ability to spread it further, but we don't know that yet. On a whole population level a vaccine will be a major help in reducing the effects of the virus, but on an individual level it's not going to mean things go back to normal because many people will not be fully protected. So besides "Access to the safety thus promised will be unequal", the access to safety itself is questionable. If I understand that "50% effective" correctly, getting a vaccine does not mean you are safe and free to walk through the world.