IMO it is a "gimmick" 99.9% of the time Total Seal will recommend something other than gapless. Total seal I think might agree if cornerd and also likely why they went to a gapless top ring. IMO it is just old antiquated thinking.

To oversimplify it. The issue is with a gapless second you will loose ring seal on the top ring due to increased pressure that gets trapped by the second gapless ring. Nowadays most top engine builders actually OPEN up the gap on the second ring to allow any excess pressure to be forced down, also helping to scavenge oil off the cylinders.