A rando on twitter is not a source, they're just citing the same circular reasons speculation as assertive truth and there's no proof.
And your citation is to:
> Discovery of a rich gene pool of bat SARS-related coronaviruses provides new insights into the origin of SARS coronavirus
Yes. There is a massive amount that we still don't know about the genoomic diversity of sarbecoviruses in bats in and around China. This is the kind of study that we need a whole lot more of. No idea what your point is.
And your citation is to:
> Discovery of a rich gene pool of bat SARS-related coronaviruses provides new insights into the origin of SARS coronavirus
Yes. There is a massive amount that we still don't know about the genoomic diversity of sarbecoviruses in bats in and around China. This is the kind of study that we need a whole lot more of. No idea what your point is.