Right after I posted my comment above, at 15:12 comments regarding Canadian forecasts appeared in The Guardian's COVID live blog, in which epidemologists say that restrictions must be preserved within the country because the vaccine rollout is a global problem, not a local one.
I can't find anything on The Guradian's COVID live blog talking about what you're referring to, can you provide a link?
Apparently this[1] is the permalink for The Guardian post.
[0] https://www.heraldscotland.com/news/19036150.covid-scotland-...
[1] https://www.theguardian.com/world/live/2021/feb/19/coronavir...
Some people have argued that the vaccinations are evidence of his success regarding Covid-19 but I don't see any part of that that wouldn't have been proceeding with or without him. As far as I can tell, the only difference between Trump and Biden's handling of covid has been "Biden knows to keep his mouth shut about specifics and predictions, because he might be wrong" which is exactly the kind of playing-both-sides I've seen from many state and city governments for the last year (talking a lot about how we need to follow the science and keep locking down to keep the spread low, but also taking no steps to enforce the rules or financially support people/businesses.)
But getting into a tussle with states he thinks are opening up too much, etc. is almost certainly counterproductive at this point.
In any case, listening to scientists means you take their input and factor that into the tradeoffs that drive policy. Which may well involve simultaneously that there is e.g. some risk associated with allowing people to travel by air while allowing them to do it anyway.
Given the speed in which effective vaccines were developed I think this is a rather bleak outlook.
Sure, a lot is still unknown with the new virus variants and as has been expected vaccination drives had their teething problems. But in a few month time (almost) everybody who wants their jabs can get it (in rich countries, that is).
I for one, see myself on a 3 week vacation in Asia later this year. Optimistic? Maybe, and certainly dependent on a number of factors beyond my control. But I think it's a much better perspective than wallowing in misery and not seeing a way out.