I think the HH is said to still keep a WIFI signal going (to use the BT wifi app should you ever need to) even if a WIFI access pont is disabled.
With regards to signal proximity, obviously you can't eradicate all risk these days. But even trying to limit immediate distance is better than nothing. So, having a WIFI signal coming at you from across the street, is better than using a WIFI router as a pillow, etc.