I don't have an anafi, but I do have a Bebop2 and a Disco. I've not had problems with the skycontroller to iphone connection over USB, but maybe I got lucky. Quite interesting now it was implemented as a custom muxed-usb device (rather than as a USB ethernet gadget).
My interest in having a wired connection between artoo and solex (table), or Mission Planner (PC) means I can play with the Wifi config on the artoo+solo (trying to get a 4G LTE link working), without upsetting the other connections.
I agree - in normal use I've never had a problem linking artoo with my Nexus7 tablet running solex over wifi.