Actually, yes. The mini already has limited space to work with, they had already to shrink the MB, the battery. It would take much more effort to put a pro camera into it. Also those camera do heat up.
Personally, i think the camera setup on ip13mini is fine.
The size is fine. But why they gotta handicap cameras?
All I want is a mini-sized phone with max's camera. Is that so much to ask for?
At this point I'm strongly considering ditching the iPhone and going Watch + Fujifilm Camera. Maybe keep an old phone at home to manage the watch.