So, just to confirm: disabling WiFi on the router also disables BTWiFi/EEWiFi on that particular router, too?
Months later I've finally got around to installing the Smart Hub 2 and managed to switch off the wifi.
The reason for wanting to do this (for the curious) is that I can't sit and work at my desk with a powerful wireless router 60cm away from my head.
If you can make do with an ethernet or powerline adapter connected network over WiFi connections, thats always a better way to go anyway (irrespective of any health concerns). It's also more secure/hacking resistant.