Here is why you shouldn't trust anything that was sampled after the outbreak: https://t.co/VoC1cwmfdz all samples were collected at June 2020. they mentioned an "oligo array" which is how they get to all virus, no bacteria. they claim "pangolins" but there were only bat.
What they actually did: the first part of SRR13380247 were virus at the 1st read and nothing at the 2nd read, despite the quality score say otherwise. what this tells you is that they have used a blank bat sample and artificially added in reads of fake viruses.
all samples lacked non-coronavirus reads. one have traces of human Flu virus and other have trace (6Kbp) "picornavirales". both were likely probes that have fell off. the samples were very late, so the most likely route: High throughput gene synthesis->mix into blank sample
(they forgot to add the bacteria, again!) and then mock "sequencing". also, since this is already when SARS-CoV-2 have been widely circulating in THailand, there exist a change that this backbone may have spilled into bats and have recombined with the circulating strains.
If you have ever studied bat viromes, you known that a real bat sample would have more than just one viral families. ajority of bats have picoRNAviruses and other respiratory viruses, yet none of these samples gave any other bat viruses other than their single "Coronavirus"