The Governor is seen as a “bridge” between the Centre and the States, and the convention of changing him / her every time a different party comes to power at the Centre is almost as old as the ideal of Governor itself. But unlike the President, who is elected by a special method, the Governors are nominated by the Home Ministry. They have no executive power. In a polity that is built of competing political parties, the logic cannot be anything but political. And any post that is not an elected one would be subject to the whims of the ruling power. Petitioning the court in such a matter is an attempt to impose one category of values on a completely different system of logic.
The bigger question for serious examination is whether we need the institution of Governor at all. Surely men of calibre, experience and distinction who are keen on selfless service to the society deserve more active positions than idle sinecures and expensive vestiges of a feudal past.