Right; it might appear intrusive and depraved, but on the other hand, if you have your shades open, you are, for all practical intent, sitting in your front yard; that's the reality.
Look at it this way, if you are in your yard flashing children, should you be detained? I would hope. OK, how about if you are indoors but doing so behind a plate of glass? Could such an act, by law, be considered lewd or public indecency if anyone passing by could clearly see your perverse transgressions?
And yes, just because you are "way up" in a building doesn't shield you, since never mind telephoto lenses, the number of city dwellers who possess telescopes is considerable enough to warrant consideration in regards to keeping the blinds open or closed.
The photos in question, by the way, are actually pretty good, at least some of them are, in terms of composition and such. They aren't throw away paparazzi snaps.