Yes you'd take the Rio era on talent alone as individuals, especially in central defence and midfield where we're poor and/or lacking any serious depth of options.
But the issue is you cannot really transplant them on talent alone and it make any sense because that wasn't the problem. The whole point of why those guys failed to perform to their club level was they were of a different mindset to the current players. So you not only have to take their talent, but also somehow make them of a completely different outlook which is messy.
Southgate is able to foster a culture with this lot, with that bunch it was impossible for even more accomplished managers to do so, and therefore they were much less than the sum of their parts. So in my opinion the only thing that is relevant is the outcome, not individual talent. This squad is a better squad because they have demonstrably better results. I'd rather go into a 2022 tournament with this squad than another Sven era tournament with that squad.