Because there are also off-brand "Apple iPhone camera's" (for instance QC failures from the factory, third shifts or clones)
Apple blocks replacing an iphone camera with an iphone camera using their software.
iPhone 12 is unrepairable: https://www.youtube.com/watch?v=AnG3h3Jewq4
Just wondering how often you'd need camera repair. I've never heard of someone needing a camera replacement for their phone, so to me this looks like a guy inflating a niche problem to enormous proportions to make a point for his sponsors.
The camera is an example of unrepairability.