Here is a test for you. Block out ALL of the squares on your XT2 Advanced zones. Then drive a car, truck towards camera. If that is not feasable, hold a lighter, torch, etc. and walk towards camera.
With XT original, the camera will still activate and do a video clip. I’m willing to bet XT2 with advanced zones will also activate. The zones are better than nothing. But are they accurate? NOPE! The PIR sensor will still detect large heat signatures such as car, truck or you holding a lighter, torch, etc.
The zones feature is to cut down on unwanted video clips from sun shadows, blowing leaves, etc. For that kind of stuff, zones works ok.