Kent does plenty of things right during the development process, but having a decade of experience contributing to OpenZFS/ZFSOnLinux, I can say that I will be very surprised if everything goes as well as people seem to think. There are many bugs in a complex code base and a simple 10x increase in userbase will undoubtably result in more reports of people hitting them.
That said, I think he is laying a good foundation (from what I have heard/read about his development process), but there are many times when the best of us have been confident in code that turned out to have problems and I doubt he is an exception to this.
That said, I think he is laying a good foundation (from what I have heard/read about his development process), but there are many times when the best of us have been confident in code that turned out to have problems and I doubt he is an exception to this.