I still don't get it.
seen some cases [of failure], but I'll be honest and say that most of them were due to user error, by for example using the wrong cables.
Though wider spread cases with group regulation and higher power components are hard to show outside of tests that have happened, since many can't see the lifespan difference. the main theoratical problem I have with s12ii is in the case of a voltage drop like you saw here earlier with the w1 and masterwatt lite, is that there is no 12v UVP to catch it.
Despite it being group regulated and lacking uvp, you even said you rarely see failures. I have never seen one. My personal M12ii i used to own honestly worked rock solid for the short time i owned it.
IMO, if something in theory can have issues but yet these issues very rarily occur with any reasonable circumstance, its not a big deal.
Judging something on a "but sometimes" rule is unfair. Here is a metaphor.
Autonomous driving features save lives, but sometimes when the driver is not paying attention as they should, the car may crash.
In the same respect, the SeaSonic S12ii/M12ii is decent, but very rarely when an owner is not pairing responsible hardware with the PSU, the S12ii/M12ii may fail.
I would also use this metaphor to argue your placement of the EVGA G3 or SeaSonic FOCUS units, but i wont rn.
The CXM green often fail, and sometimes even in systems without any form of dedicated graphics!
So I still find the M12ii and CXM placement incorrect.
The more you explain, I do respect the work that went into the list. However, the list is derived from a group of people's conclusions from tests. I have a different opinion, one that believes some of your conclusions are inaccurate. Everyone has and is entitled to an opinion, after all.