Just watched it, and I still think a lot of people aren't really listening to what is being said.
Basically, we're in the same situation, even slightly worse now with the new strains, as we were, 8, 9, 10 months ago, and even the boffins STILL DON'T REALLY KNOW!!
So, how can they 'reassure' the world's population that these vaccines are DEFINITELY, their words, THE RIGHT THING TO DO?!!