There is quite a bit distinction between the two, because while the first set talks about innovation in all different sectors (of which Bitcoin is a insignificant fraction of the economy) we see at least half the second batch being in North America. While El Salvador were certainly groundbreaking in their adoption of Bitcoin as an official currency, besides that their tech sector and Bitcoin functionality would be dwarfed by many other places - I'm not even sure how they made the list, somewhere like Tallinn in Estonia should really sit in that slot. Anyway, the fact is these countries have solid legal and financial structures that are enforced, while the workforce is willing to adapt to new technologies - I'd say those would be the most useful drivers.