It looks like the patch was committed in late September [0] and the press release for the device is dated mid November [1]. So unless I'm reading things wrong they added support upstream before they released the product?

0: https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=fe...

1: https://www.dropbox.com/scl/fo/kn38opoklmwx22am6b1fm/h/Press...