Wow. You're getting your news in all the wrong places if you believe anything you just wrote.
The GPUs do not "communicate" with the PSU. The sense pins are terminated to ground (as they were with the 8-pin PCIe). The other two pins, CARD_PWR_STABLE and CARD_CBL_PRES#, are not implemented by Nvidia, nor were they asked for by Nvidia. Members of the consortium ask to add them.
Now you're mixing two different news "stories". First: there is no "news" about 'retrofit cables" posing a burn risk. Wccftech made up the story and then Jayz ran with it. The connectors that were burning were the 12VHPWR connectors on the PSU.
Jayz's whole video is hilarious to me. He "reports" what he read on wccftech's website, then shows parts of Steve's (GamersNexus) video that shows a slide showing a burnt 12VHPWR connector on a PSU, but doesn't even realize he's showing a picture of a burnt 12VHPWR connector on a PSU!!!!!
Read this:
https://cultists.network/8815/melting-12vhpwr-connectors/
Second, THE 12VHPWR connector is the one being reported with 30 insertion/removal cycles!!!! Nobody said anything about the same being the case for the 8-pin (although regular mini-fit jr. connectors are also 30 cycles, an HCS connector is good for 100 cycles.)
Not if it doesn't have at least 450 to 600W available on the +12V rail! LOL!
They're not "guaranteeing compatibility with 1000 to 1600 watt PSUs." They're making suggestions on what wattage to use given you plan to use a particular TDP card.
I don't understand why people can't do real research, pull up data sheets available to the public, ask actual experts... you know... REAL journalism. Instead, they get leaks of partial material and then fill in the gaps with complete bullshit that causes a bunch of drama.