Hehe well it's probably legal weed, so no thanks! Gross.
Funny though... if it was actually decent cannabis, it might help protect people from the vaccine's effects. Cannabinoids are neuroprotectants, for one thing, and also anti-cancer and anti-inflammatory.
Although, it's funny to give people joints to smoke "as a way to bring people together" once they are vaccinated. Since the vaccine doesn't stop you from getting infected or passing it on, won't puffing joints as a group just ensure that everybody gets infected?