People keep acting like balancing is a high priority, but all you can really depend on, is monitoring, alerting, and then shut down/go into limp mode.
If you have a situation like Der8auer had in his testing with 20 amps on one wire and 2 amps on another, you can't balance that.
monitoring and alerting like the asus astral is the 2nd weakest protection as you have to install the alert software and be willing to stop your gaming as soon as it chimes. monitoring and shutdown before you even try to game is better as it actually tells you your cables arent plugged in correctly. the vrm balancing multiple "rails" is part of the monitoring and has some ability to deal/correct with the problem.
nv using a single 12 blob into the vrm with no ability to put multiple shunts or meaningful fuses just means that the card gets zero possibility of it being easily/cheaply fixed by replacing the powerstage and blown fuse. buildzoid goes into some of the fuse math. too low of a fuse value and the card shuts down due to frequent transient spikes in normal gameplay. too high and the fuse doesnt actually trip when you would want it to leading to the card self-destructing in a non repairable way. splitting the lines into multiple 12v "rails" at least gives you a chance to let the vrm try to fix some of the issue and allows you to protect from the worst case outcome.
melting cables and gpu sockets with a side of burning psu socket is not a "oh we cant do anything about that" scenario.
if nv lets board partners split up the rails and fuse them, then fine let the buyer take the responsibility of stopping their gaming session before something fails. if they let board partners fix the issue like the msi 2080 3rail, then great.
but what is more likely: nv acknowledges their mistake in the 12v single blob into the vrm and the failure point of the 12vHF cable, or nv forces its partners to stick to the blob and blames everyone else for the cards failing (soldergate, gpu killing driver patch, thermi) so they never have to pay for the repair/rma.