Customers are typically unhappy when Microsoft refuses to fix critical bugs that only arise when running Windows on older hardware.
To the average user, "Windows installs without error and hardware appears to work" = "Microsoft supports running Windows on this hardware", even if the hardware is EOL and requires drivers that haven't been updated since Windows Vista.
To the average user, "Windows installs without error and hardware appears to work" = "Microsoft supports running Windows on this hardware", even if the hardware is EOL and requires drivers that haven't been updated since Windows Vista.