Trying to explain away every incidence of successful covid-squashing as not applicable isn’t very convincing given that there aren’t any examples of jurisdictions that failed at a real attempt at covid squashing - every one of them succeeded. And this list is quite varied - it includes jurisdictions that are islands, that have long land borders, that are countries, that are sub-country-level, that are in the Anglosphere, that are outside of the Anglosphere, that have small populations, that have large populations, that are on three different continents, etc.