1) You were saying that the US and GB might very well be top 2 in terms of healthcare sytem. If you would tell that to the people in the US (30 million people without health insurance) or GB (ridiculously low number of ICU beds per 100.000 compared to Germany for example) they would probably think that you are joking.
2) I have no problem with making a conclusion about a ranking that has 100 % been proven wrong by reality. The US and GB are top 2 in the ranking, but in reality they are closer to bottom 2 (in terms of dealing with this pandemic). Of course their political leaders also played their part, but the things i mentioned in 1) played a major role and you don't have to be a nuclear physicist to know that 10 % of your population not having health insurance or your country having only roughly 1/5th of the ICU beds per 100.000 compared to Germany leaves you pretty vulnerable to a pandemic. I also have absolutely no clue how anyone can think that countries that haven't dealt with an epidemic like this (at least somewhat recently) (GB, the US), would be better prepared than countries (South Korea, Taiwan, Singapore and to some degree Japan) that have been through this multiple times in the past two decades alone.
Edit: Maybe this ranking was based on a pandemic where noone would get sick ... then it might be accurate, but in a scenario were a large number of people get ill at the same time, there is absolutely no way that any expert would think that GB (and to some degree the US) is better prepared than all of Switzerland/South Korea/Japan/Singapore/Germany/Norway/...