[tehlike]

Among other things, you are missing a point. There are mainstream users, and there are tech savy users. You can repair your device, but a regular user who doesn't know about how electronics work is likely to send their device to a repair center with lowest cost.

Which means hackers could advertise cheap repairs, in exchange for placing malware hardware/software on user device.

I like to see the hardware opensource, as it is immensely valuable, but apple does have a point.