alt Hacker NewsI don’t work at the fruit co but since you asked for speculations. Mine: the fruit co designers are still designing a nice interface to show the overflow, because they obviously think that the Windows tray overflow looked inelegant and are still searching for the ideal UI. But the designers themselves don’t have a lot of menu bar apps so they don’t think it’s a priority.
Or perhaps the teams at fruit co found a way to claim that their overflow is an innovative new feature and not copied from some other designs.
While they do a ton of good work, they do love to claim everything was first invented by them.