Not convinced. This is not a body I know anything about, but they seem to be critiquing the original Chinese paper on SARS-2 released in Jan 2020, which describes mainly 'in silico' based research, which I believe is what I recognise as 'in vitro' as opposed to 'in vivo' Thus their beef seems to be that all the testing and vaccine development is based on theoretical sequencing based on this one paper. That I do not buy, It may be a start but others also took it apart before this lot did, and it is unlikely that any product is based solely on the original research.
I get the general drift of this paper where it goes into elaborate detail of typo's and spelling mistakes in the original paper - they get quite anal in one section.
I downsize this report even tho it has some 'science 'in it since the teams working on the test supply and vaccine work were pooled from worldwide academic research where the principles of their work were established years before Covid arrived. The authors of your paper seem to be very academic, and Eurocentric. I bet they are all professors. Edit: there are only a couple of people on the author list who would appear to be involved in relevant careers or relevant speciality. There is a microbiologist, and a virology professor, and the ex-Head chemist of Pfizer. One is mentioned in the profile as holding a patent on PCR, so presumably does have knowledge.
Edit: Just read the small print, and there is a retraction request from the main authors against their own paper,