Earlier quoted context omitted.
Yes, that would be great. But without the ability for us to verify this who's to say they won't use the edge resources(your computer and electricity) to process data(your data) and then send the results to their data center? It would certainly save them a lot of money.
If you trust that Apple doesn't film you with the camera when you use the phone while sitting on the toilet. Why wouldn't you trust Apple now? It would have to be a huge conspiracy with all Apples employees. And you can easily just listen to the network and see if they do it or not.
Of course we can then worry that companies are breaking the law, but you have to draw the line somewhere… and what have they to gain anyway?