One quoted thread was from "Tony VanDongen, an associate professor of pharmacology and cancer biology at Duke"

Seems like a reasonably valid opinion from someone with a clue. He's addressing specifically why Omicron is weird, and doesn't look like a normal evolution of COVID-19.

Another is from "Scott Ferguson, a PhD in pharmaceutical sciences and a postdoc at the Harvard Center for Systems Biology".

3rd and 4th are: "Phillip Buckhaults, Ph.D., is a molecular biologist and cancer geneticist at the University of South Carolina" and "Valentin Bruttel, who received his PhD in 2016 at the University of Würzburg (Germany) where he studied tumor immunology, autoimmune diseases, and development of biologicals"

A key diagram used is a Phylogenetic Tree from Science.

Looks like a collection of valuable scientific info, collected to support an opinion. Not saying it proves COVID came from a lab leak, but it's not just random speculation. Seems like a pretty valuable discussion to me.

Wouldn't you want to know if a disease impacting billions of people looked inconsistent with a naturally evolved virus? The scientist involved mention possible other explanations, poor models, etc. But do seem to lean towards a likely explanation of artificially tweaks to get omicron.