Origins of SARS-CoV

From  Nature

SARS-CoV-2 itself is not a recombinant of any sarbecoviruses detected to date, and its receptor-binding motif, important for specificity to human ACE2 receptors, appears to be an ancestral trait shared with bat viruses and not one acquired recently via recombination. 

More evidence of natural development rather than man-made  as conjectured by, er, some

Not definitive but evidence at least of a plausible path