An OS just needs to get out of the way and let applications work so that people can actually get things done. If the OS is succeeding in allowing the required a

An OS just needs to get out of the way and let applications work so that people can actually get things done. If the OS is succeeding in allowing the required applications to be made, then we don't need more operating systems. If it is failing to cater to the specific needs, then a new operating system will be created to run those apps - see iOS, Android. You don't build an OS and then build things for it. You build things you need to run, and then you build an OS if you can't run them without it. The article has this relationship backwards imho. In the same way, many people create frameworks and then try to fit them to problems instead of creating frameworks to solve problems.