Wow… so much wrong in this “support”
The sensors do in fact talk straight to the bridge in the camera. It has nothing to do with your WiFi. WiFi to the cam/bridge combo yes, but if a sensor is more than about 20 foot from the bridge, you will be gin seeing issues. RouteThis is shady AF, collecting all your network information and sending it to some 3rd party server that you dont know who is looking at that data.
RouteThis is just a way for Wyze to appear to be “helping” and then blame it on your connection speeds, your router, or “network congestion” to get you looking in another direction than their hardware.
The sensors use 912mhz to talk to the bridge, a very crowed space of other signals. Placing your phone next to the camera and running RouteThis only tells how well your phone is communicating to your router, not the camera. And I am sure that the engineering and signal quality from your phone is going to far out weigh the wifi integration in the wyze cam.