Many people are still having hardware problems such as dealing with a crippled Bluetooth file transfer which can no longer automatically receive files, thereby making the user invoke every single transfer. Many others are having charging problems with Android phones.
Even Windows 7 needlessly made it difficult to use more than two power schemes, which many people who work their computer hard may want to use. Windows 7 made the computer management event logs terribly slow to sort on even a modern computer. Windows 7 also made it next to impossible to format a large FAT32 drive.
With poor privacy practices, a disrespect for the user as far as upgrades, recent unfair browser marking practices, a lack of UI vision, will another company ever dare make a competing commercial operating system for PC compatibles?