> The quote was grabbed because it said what that gene was associated with -- blood groups -- and the disease is known to impact blood. The sentence following

> The quote was grabbed because it said what that gene was associated with -- blood groups -- and the disease is known to impact blood. The sentence following your quote says a new study suggests genes determining blood groups are NOT associated with COVID severity. If you want to criticize the paper, at least quote something that the paper actually supports. As to your main point, others are working on the functional part. The authors just report a finding with their expertise. Not every scientific paper immediately solves a practical problem.