Linux usability on the Desktop OS has significantly increased, this brings two major problems:
1) Wider range of hardware and use cases, increasing the chances of problems with untested use scenarios,
2) Linux on the Desktop is moving from an hobby OS to a main workstation OS, regressions have a serious impact, they now affect some business or some people work
Ubuntu and Desktop distros in general are trying to resolve problem 1 by pushing new technology as faster as they can, but what about problem 2 ? Is it really being addressed ?
Some years ago the FAQ was "I have tried Ubuntu on my PC and there is no sound, no network and my device Y is not recognized", most of the times the root cause and answer was simple: "The current kernel drivers do not support your hardware yet" or "You need additional configuration to enable the driver" - additional work needs to be done, someone needs to improved/develop drivers and/or configuration tools.
These days, the FAQ is "My sound, network and graphics where working great until I did an upgrade", the answer "It's a regression" is not that easy to explain - work was done on some driver/configuration in order to improve it and it's failing on your case, possible reasons are: unknown problem(not tested), known (waiting for a fix), known (won't fix).
I hope we are not running in competition for hardware/features/whatever support with the leading OS.
The fix for bug #1 should not introduce such a severe regression as lack of reliability.