First of all none of that was in the tweet we're talking about, and the tweet wasn't the one of main issue, the main issue and context are, he is now blaming someone else for not acting a week after when he said there was no worry.
There were also many complicated reasons why action was so slow, we know that. So his now crying on BBC blaming everyone once for not acting a week after he said no worries is laughable, that's without the BBC again doing its division ****, during a pandemic.
"Covid-19 is between 0.66 & 1.33% " is based off what, known cases? It's certainly not based off of sufficient data to understand 1 how dangerous it is and 2 the fatality rate
Let me layman the understanding how we know how "dangerous" it is.
To assess how dangerous this is compared to common corona virus
You need 10,000 cases of common corona with respiratory infection
10,000 cases of COVID 19 with respiratory infection
and you need to compare the data to see HOW more dangerous it is. We don't have these studies done yet, except one in France I think which actually shows comparable danger when both common and covid 19 give respiratory infection (I've not read the study, so can't vouch for anything in it).
Then you can assess how more dangerous it is.
To assess mortality you need to identify at the numbers infected, which need not be exact, and we will probably never have good data on that because of the nature of the outbreak where in all likelihood at least 60%+ of cases will never end up in any data set, only guestimates will exist
I also cannot speak on anything he tweeted afterward.