When you're the 800-pound gorilla, you don't have to worry as much about the other animals in the ecosystem. I remember the days of Internet Explorer 6 and how that browser was allowed to stagnate, giving time for Mozilla Firefox to rise out of the ashes of Netscape Navigator and offer an alternative so compelling that it forced Microsoft to compete again. I feel this way of thinking may also explain Microsoft's approach to controversial features such as telemetry and UI changes; where will users migrate to? Migrating to the Mac or Linux requires tradeoffs that a wide amount of users have decided through their actions are not worth migrating away from Windows despite some of Windows' problems.
Oracle provides RHEL build and it's pretty good. No CentOS drama, it's free and just works.
I think that Oracle can execute well.
github is still developed by Github Inc.