Based on this comment: https://x.com/semih__yavuz/status/1819075993576874117
Indeed a lot of times models retrieve the same / both retrieve something poor. Could also be sth where if sb votes Tie / Both are bad then there's an option to display the 2nd (k=2) result or sth (tho will require either re-retrieving or always retrieving k results to begin with). cc @semihyavuzz