While the tone of the covid model scrutiny leaves a lot to be desired it is understandable seeing as how the results are affecting the entire world. The situation is unprecedented.
I don't think anyone is saying the code can't be better or even that the results might be wrong (I don't know as I haven't spent much time going through the codebase).
My meta point is that people are:
1. pressuring and blaming the wrong party.
2. doings something which will have an unintended strongly negative consequence (make scientists averse to publishing their code).
While the tone of the covid model scrutiny leaves a lot to be desired it is understandable seeing as how the results are affecting the entire world. The situation is unprecedented.