Wi-fi cards are actually a huge issue if you are concerned about privacy. You have no idea what the firmware is doing, and it has access to your entire memory through the pcie interface, and the internet at the same time.
in the year 2018
ewwwwwwwwwwwwwwwwwwww.................
I don't see how using a Qualcomm (Atheros) 802.11n chipset is any better than an Intel chipset card, developers do NOT get access to the code that's running its firmware. Same as Intel.
But they have to go with some weird, ancient 802.11n card instead of a modern 802.11ac 3x3 MIMO, dual band Intel chipset card, because they don't like the binary blob in the ROM of the Intel minipci-express card?
At some point in time you have to trust the devices you're attaching to the pci-express bus in an x86-64 system or you won't have any useful functionality left.
Anyway, the more open components the system the better, and if this shows there is an interest for an more open system, the next one might be more open than this.
Not so much for the firmware blobs the vendor maintains in the "linux-firmware" kernel.org repository and that are absolutely required for the device to function.