To briefly weigh in, I don't necessarily have a problem with DL trying to offer a variety of foods at SkyClubs, but with the limited amount of hot food space (particularly at JFK), I think that DL should stick with dishes that please as many people as possible.
This dish was clearly a miss, and shouldn't be offered again. Regardless of the merits of it (I've never tried saag paneer before), the presentation was poor, and I imagine that few chose to partake.