It is also praiseworthy that Microsoft also used Release Preview Ring before launching it officially. Previously October 2018 Update was released in a press event and Microsoft skipped the release process via Release Preview.
Ars Technica also stated that Windows 10 development process is flawed. Such errors should not appear on common users. Microsoft fired or reallocated many internal testers and a lot of testing was done by Windows Insiders.
Worse, most Windows Insiders do not dare to install these builds on popular machines and Microsoft does not encourage it. This means that the new version of Windows 10 is not tested in the real world before it is released.
Now perhaps Microsoft has overcome all the errors that should not have been there in the first place.
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