Right.
That was an interesting podcast.
Summing things up and sprinkling some of my ideas in and around it all: what we think of as Saison is probably derived from Dupont's interpretation of the idea that seasonal workers need to drink too. Is it a farmhouse ale? No, since Dupont is obviously not a farmhouse brewery. Is it a farmhouse-style ale, even if perhaps not a historic one? Hard to say but probably not, given the evidence.
So yes, everything we know about saison is wrong but at the same time, Randy confirms everything I consider to be definitive about saison: it was never a style as such, and apart from its utilitarian origins, there's not a lot you can pin on it. For ease of reference, I consider saison to be "something that'll make people treat it like a saison", but I'll call it farmhouse ale(°) unless I'm feeling fanciful.
°) farmhouse-style ale to be more correct, but who is ever truly correct about farmhouse ales anyway?