I think Apple wants to minimize the number of devices that use the A17 Pro - IIRC it's fabricated using TSMC's much more difficult 3 nm process compared with the A18 and A18 Pro, which was most of the reason why the A17 Pro only appeared in the 15 Pro/Pro Max and now the iPad mini 7. We also don't know if it is less expensive to produce than the A18.
The 2x optical zoom is just what the 48mp camera gives you - the photo is cropped in half. Perhaps you should suggest going back to the old 12 MP camera.
I'd say it's clear that Apple just doesn't feel it needs to be in the as cheap as it can market. They may lose sales, but minimally so, and revenues likely will not suffer much. If they do, they can pivot later.