That really is good news. However, it's noticeable that the BBC's reporting is much less positive, and - as ever - there always has to be a 'yes but' part of their report.
https://www.bbc.co.uk/news/articles/c1l1r1zne1ro
e.g.
But independent researchers caution that other factors must also be considered.
...
Meanwhile, Kevin McConway, emeritus professor at the Open University, said it was important to take the full impact of Covid into account and argued that studying other cities could help tease out whether some improvements were due to unmeasured differences between London and Luton.
Why? I know that the BBC is supposed to be impartial, but why do they always have to undermine something that is positive with - frankly rather meaningless - 'opinions'?