I'm not going to argue with someone who's obviously doing it in bad faith.
The files reek of AI. It has all the hallmarks of it: Garbled audio, odd noise, this eerie non-sense pronunciation of words. The timing, the pacing, it's all off. Yes, you could get that with an actor too, but once again let me ask you what's more likely: That they hired a dozen impersonating actors, or just use ElevenLabs or similar. The burden of proof should not be on my side, but on theirs. If they have been actors, then I'm sure they can provide some proof about it, and we can go our merry way. It's easier for them to prove that it isn't AI, than it is for me to prove that it is AI.
If you wish to do an in-depth analysis of the audio, then by all means, please go ahead and do it. The audio is really, honestly clear, however. It's not garbled by radio effects or similar, it's as plain as you can get it, and it's not a case of "sounds an awful lot like X" or "reminds me of X", which I would all accept as "weird, but okay". This definitely isn't.
Have you listened to some of the files, at the very least? Or are you demanding proof and analysis for something that you haven't even bothered to look at yourself in the first place? I listened to the files, I had other people tell me about them, so it's not exactly just me hearing things.