Dude you are digging yourself a hole. I do Dell warrantee support and I can tell you that poorly installed drivers accounts for about a 1/3 of the repair jobs that I do. I go out to a site to replace a motherboard with onboard video and find that they had to reinstall the OS and didn't install the video, NIC, insert some other driver here. Or better yet the disk that Dell sent out with the PC was for a different model or didn't have the correct drivers on it. There have even been a few times where I had to walk away without repairing it because even the drivers on their site were the wrong ones. Or where they installed a new audio card however the onboard audio was being a PITA as it was set as the default audio device. Disabled that rebooted, and the system was pissy because even though I had installed the drivers there were components that hadn't gotten installed because the installer files saw that the default audio device was the onboard audio and stopped the install. So I had to uninstall the drivers, go into device manager, remove a few hidden items, reboot, reinstall....
Please stop now. You are already halfway to China.
How am I digging myself a hole? Read your own post above: THEY REINSTALLED THE OS AND DID NOT INSTALL CORRECT DRIVERS = USER ERROR. THEY INSTALLED NEW CARD AND DID NOT DISABLE ONBOARD FIRST=USER ERROR.
Why stop? Both those examples are user error. Both examples could happen to a Mac just as easily. My built in mic does not work on my G3 AIO, nor does OS X support properly resizing the monitor. However, the machine was built and designed by Apple, and it supports OS X Natively.
How do you explain that? There are things on macs that don't "Just work" without a bit of tweaking. Same goes for PC's. Both examples you listed above required the USER to cause the problem.
Neither would have been an issue for me, or anyone else with some computer knowledge, so neither example highlights "DRIVER HELL" but simply shows the average user should not be mucking around in the hardware / OS of any system, mac or otherwise.
I am not trying to pick a fight with you, I am saying that the hardware on most things "Just works" and is rarely an issue if you simply RTFM.