And the distinction matters to consumers because...?
A component is faulty. It needs to be fixed. Whether or not you have to drive to a dealership, if it's OTA, if someone at a dealership needs to plug a specialized device to your car's OBD port, or the car is unfixable and needs to be melted to slag and you get a new one doesn't really matter. There's an issue, it is a safety issue, and it needs to be fixed.
How efficient the process can be it's another matter entirely. That's up to the manufacturers.