Earlier quoted context omitted.
Not correct. Wifi is not used to boost precision at speed. That is generally done via dead reckoning using the gyroscope and accelerometer. Wifi helps with bootstrapping a coarse location quickly before satellites can be acquired, and with indoor positioning.
And (along with cellular data) with acquiring the almanac data via the Internet instead of waiting for up to 30 minutes for the satellites to broadcast it.
Just by downloading recent data without any prior knowledge of your location (aside of maybe determining which continent you're on, which most of the time is already known because of which cellular network you're connected to), you can usually easily reduce that to around a minute with no WiFi, BT or cellular triangulation necessary - and that's on a cold start; hot start will be instantaneous anyway.