Important distinction - the day when Apple is honestly supporting right to repair is not yet here, and given company's history it most probably won't come anytime soon. Which is fine, but let's be honest here. Apple is for-profit corporation just like gazillion others, it will fight tooth and nail against anything imparting their revenue streams, be it massive cut from itunes sales or expensive repairs.
These kind of modern just movements are not what mega corporations like Apple enjoy. But they have to throw bits and pieces around for marketing to show to mostly young that 'they care', 'they understand', 'privacy first' and so on. Well sure they do, about their revenue. Just look at their actions, rest is pure marketing carefully crafted over months and endless meetings and psychological market analysis.
What they did is just marketing move and basically allowing you to pay them fully just like in official repair center. That's not what right to repair means (hacking together my own fixes if I decide to, ie in old John Deere fashion). They should just make sure that things work at the end while not compromising things like security and longevity, ie by open protocols and specification. Nothing like that is happening anytime soon in Apple realm.
That's not really how interfacing with hardware works.
Drivers have intimate knowledge of the hardware, and expect exact behavior. If the knock off hardware doesn't exactly implement those same behaviors that that driver expects, problems can happen.
I assume that the driver did something different, that the knock off got wrong.
This doesn't necessarily indicate malice. Apple has little obligation to test every software change on non standard hardware so it's reasonably possible some innocent change had a breaking effect on a modified device.
It wasn't Apple, and it was unrelated to DRM. This device had no DRM.
You could claim that the lack of serialization/identification was the problem.
If they would have known it was a non-genuine part, they could have used the legacy driver. As is, they would have had to find some side channel to identify it was genuine or not, or just never update the driver for that module again, all based on user reports of random phone stopping, and analyzing those phones, because there's no way to know what some random knockoff is doing.
Do i observed this so many times, whenever we have a strong suspicion something dodgy is going on -
folks on this forum have such prepensity to give large immoral corporation benefit of the doubt, but declare individuals guilty.
Motive, Opportunity and Means, Aplle has all three.
So the display was ok but was disabled by SW.