People always assume that every 3rd party repair shop has Louis Rossmann-levels of skill and integrity. Some do. Some don't.
Apple is trying to protect people (and their public image) from the scammy people who swap the cheapest shit on your phone and still charge a premium.
Then when the phone explodes and takes someones buttock with it, it's WAY too late for Apple to say "but it was a 3rd party battery, which was dodgy and installed carelessly" - the Court of Twitter has already decided that Apple is evil and their phones are crap and here come the class action suits.
So the only sane way is to make sure people can't get dodgy components installed on their devices.
Also, if every Apple Genius was Rossmann-good with similar tools, they could solder out single components and fix pretty much anything on site.
But they're not, so they are instructed on how to swap the smallest viable part when one section fails. That might mean swapping a whole case when one rubber foot falls of, but that's still easier and more cost-effective than training everyone to be a soldering and electrical engineering genius.
If it were about dodgy parts, it would be enough to use genuine parts. It's not. If it were about dodgy parts they'd make it easy for third-party shops to get genuine parts. They don't. Why do parts through their independent repair program cost more (to the point of being uneconomical) if the shop is replacing a non-OEM part or (god forbid) they want to stock up so they can actually replace parts when their customer walks in and not have to wait for Apple's approval[1]? How does charging more for replacing a non-OEM part protect people?
I've done things Apple's way, and my reward was losing access to my work tools for two weeks. They can pay for prime real estate but they can't pay to train their Geniuses to actually fix things? To change a battery? They can't keep parts in stock? Doing things their way is miserable---they are capricious, they deny they ever make any design errors, it is inconvenient. This drives people to third-party providers where they can actually get better service for the products they paid a premium for. How does this protect people?
I'm not even talking about component-level repair. I'm not talking about changing a bad chip.
These are the feet[2]. They stick on. No soldering required. But apparently that's too hard for their Geniuses to do.
1) Half the stuff won't work if you solder them properly anyway.
2) Apple should not be worrying about the shoddy job repair shops might do. It's not their business. What they could do is ask for every 3rd party repair shop to declare that they are not Apple certified clearly in their website/storefront.
Many third party repair shops are pretty bad and Apple goes out of their way to make sure those shops stay bad. It's very hard to get good when you cannot access parts or schematics. Apple does everything they can to sabotage the repair community so they can keep up this excuse.
Apple is trying to protect people (and their public image) from the scammy people who swap the cheapest shit on your phone and still charge a premium.
Then when the phone explodes and takes someones buttock with it, it's WAY too late for Apple to say "but it was a 3rd party battery, which was dodgy and installed carelessly" - the Court of Twitter has already decided that Apple is evil and their phones are crap and here come the class action suits.
So the only sane way is to make sure people can't get dodgy components installed on their devices.
Also, if every Apple Genius was Rossmann-good with similar tools, they could solder out single components and fix pretty much anything on site.
But they're not, so they are instructed on how to swap the smallest viable part when one section fails. That might mean swapping a whole case when one rubber foot falls of, but that's still easier and more cost-effective than training everyone to be a soldering and electrical engineering genius.