Fallout does not work at all because it is a game. I don't only mean that ghouls being created by radiation is unrealistic, whatever that means. This idea is stupid in every way imaginable. Person central to the creation of fallout intended the ghouls to be the creation of Fev and this is simply the better idea. You seem to not like "technobabble" so I don't think we'll reach any consensus.
I'm fine with technobabble (where necessary), and I wouldn't mind it if ghouls were created by some FEV influence. To me it's on par with the Pure-Radiation model in terms of sillyness. Ok, maybe a bit less because it adds a MacGuffin, but in the end there's not much difference. We already know that Fallout's physics work differently to ours, so it doesn't really matter if we put the handwavium in the radiation or in the FEV. Personally, I agree with Tim Cain and Chris Avellone: Fallout was supposed to be all about nuclear effects (viewed through the lens of pulpy science fiction). Like all those classic monster movies with radioactively mutated ants and stuff. Making everything at least a partial FEV effect takes too much away from that. But in the end it's all a matter of preference and not really important at all.
So radiation is not handwavium? It is not just as silly because Fev creating ghouls would be doing what it was designed for. I always took the fev in the atmosphere as a big twist explaining things you before took for radiation results.
And don't argue with me and then talk about "preference", I told you what I prefer and why, and my preferences seem to irritate you.
Then you have the wrong impression of me, it certainly does not irritate me.
To clarify this: In your initial post it sounded to me like you wanted to impose real-life-rules of radiation on the world of Fallout, which I just wanted to point out would be futile as the world of Fallout adheres to different rules.
But it's absolutely fine to have your own headcanon, and I agree that from a "realism" point of view it certainly makes more sense than just radiation.
(And of course radiation is handwavium, that was the entire point of my last post. It doesn't matter if you invent a virus or use the loose laws of Science! to explain ghouls, it's the same kind of handwavium)