Thank you for your kind comment, and the codon repeat is indeed an important question. As much as the codon repeat suggests that SARS-CoV-2 has been subjected to gain-of-function experiments, there are other ways of interpretation, which I think this recent article explains it well.

https://medium.com/starts-with-a-bang/ask-ethan-how-can-you-be-so-sure-that-covid-19-didnt-happen-from-a-lab-leak-73033f236963

For instance, the author argues that "preferences for which codons encode an amino acid are a function not only of the pathogenic organism itself, but of the host organism that the pathogen is well-adapted to. "

So, I think there are two ways of interpreting what the CGG-CGG codon repeat means.