Top smoothing/compulsive shutdown Wallbox?

It has been planned for a long time to reduce wallboxes to 5kW in case of lack of electricity. Now heat pumps and wallboxes should be completely switched off at peak times. Over hours. Even if it is moved, without electricity it will come and without electricity we will be more frequent in the future. Would then a charge over Schuko still be possible? Does the power use still work with a bi-directional wallbox or does the car fail as storage completely because the whole wallbox goes off? The Wallbox promotion (only controllable) is clear to everyone.https://www.welt.de/…/…nt-Forced Charging Breaks-for-Elektroautos.html