Well, if you're going to define it that broadly -- and as an outsider to the field I reckon I have no reason to object -- then I have to concede the point.
And, much as I hate to admit it, some of Robin's arguments regarding the critical role of political philosophy in the minds of specific persons at specific junctures in history are starting to grow on me, especially if I take your lens to it.
What bothers me so much, though, about philosophical discussions is that they always seem to devolve into pointless spats about whether a seraph or cherub can legitimately claim space on this or that ism of a pin. It doesn't take long for turf battles to replace substantive discussion of the real world.
That said, I still believe that the larger perspective needs to be taken into account as well, such as the points made about the evolution of democratic systems in Athens.