I don't think it is an offshoot, since Luke's list (in PSUCultists site) is biased heavily. Favoring Corsair the most while downplaying Seasonic. And it doesn't include that much in-depth info about each PSUs, like: ATX version, OEM, topology etc.
SPL's list (not my own list) is very detailed in that regard and i've looked it over in-depth and didn't spot any bias towards any of the brands, or downplaying specific brand just because.
Sadly, SPL's list doesn't include all older PSUs, despite some of the PSUs listed are from 2010. E.g it doesn't list Seasonic M12II EVO, that also came out in 2010. Or Seasonic G- and X-series. It would've been interesting to see how those old units would've fared. But that's a little concern, since at current date, no-one should be buying 10+ year old PSU platform regardless.
Overall, SPL's list is the best one i've seen in my years. Best part is, that it is also up-to-the-date.

Luke's list is outdated (2 years old) and doesn't include any new releases. While SPL's list does (if there isn't any good reviews of the PSU, you can find the PSU under the Full List tab).
I looked JayZ vid and he stated that, besides undervolting, he is also running 5.7 Ghz OC all-core on his 2nd 14900K.
This makes me wonder, if it was truly just the undervolt that killed the CPU? Or was it due to all-core OC?
🤔 Since we all know that high OC level will kill CPU - fast.
That vid too for parties interested:
View: https://www.youtube.com/watch?v=GFU5CgtOs_U