It’s a lot cheaper to install one sensor per door than it is to install a motor for every moving compartment and a sensor to see if it needs to be closed and that’s just to make sure every door can be closed. A lot of extra circuitry for something they can just do on the cheap.
I scroll past the sponsored Google result links to get to the non-sponsored one that was “identical”. I haven’t intentionally clicked an ad in a while. Generally if I want to click an ad I just Google what I need to not need to. I use a pi-hole so generally I don’t see them.