Pan F would seem dead on arrival with alt processes. For that, one typically needs a very long scale film, just the opposite of Pan F. But someone will no doubt try, or perhaps they'll reconfigure the curve after scanning to make a secondary digital negative.
My best results with it have always been with a modified PMK pyro tweak which handles the highlight gradation better, keeping it from shouldering off so fast, and rated at 25; but that's in relation to conventional silver gelatin printing.
It develops quite fast, so too much density is just a matter of overdoing it. But that doesn't necessarily mean you'll get good gradation. Shadows can some out rather disappointing because the film just doesn't see down there. It has an exaggerated S-curve with very little straight line. For Zonies, you're really looking at a Z3 to Z7 dynamic range film, with limited malleability.
Maybe Ilford is just wiggling their toes in the water to see what happens. The real question is if there are any repeat buyers rather than just curiosity seekers. And Freestyle was probably just wiggling their toes in the water too; we have no idea how many boxes of 4x5 they themselves purchased in advance.
In this area Pan F roll film barely sells at all, whereas FP4 and HP5 sell well even in 4x5 everywhere a reasonable selection of film exists, and it common to see a token box or two of 8x10 on shelves too. I'm certainly not bad-mouthing Pan F; I've made some lovely prints due to it. But I certainly wouldn't call it a versatile film.