Definitely a reasonable question. Personally I would answer that by asking, “who uses intel for gaming”? Currently, very few, even less than AMD (lmao). Meaning the devs likely just don’t have one and can’t make any promises. I bet if someone bought them one they’d appreciate it ;)
I haven’t been following the arc cards very closely, but my loose impression was the drivers were heavily in flux until recently, and I’ve seen complications pop up in regards to mixtures of bios/uefi options, such as resizable bar being crucial for performance and some virtualization options causing incompatibility or performance issues. Basically the dust is still settling.
As such it’s hard to say “yeah this should work”.
I do think they should list the reasons why certain things are “not supported*, what “not supported” actually means, and not bury these surprises. Otherwise it guarantees confusion and (my wild but good faith) speculation.