That was almost a jumping-the-shark moment for NCIS. I have not given up on the show, yet. They have been known to throw in an occasional PC moment, but they are the only show in which terrorists are usually mideast muzzies, rather than East Germans or leftover IRA guys.
Another PC episode from last year involved Ducky refusing to do an autopsy on a muzzie unless it was done according to R.O.P. rules. They came back from that episode. I think all CBS shows have some sort of obligation to do an episode that coincides with some "CNS Cares" message of the month. Don't give up on it yet (but I wish Bellisario were more involved).
It is not an inherently bad thing to portray a religion’s traditions concerning autopsies. Hopefully they will make a similar point should Ducky have to autopsy a devout Jew. Both Jews and Muslims have certain requirements about autopsies which Christians don’t have.
I remember a Crossing Jordan episode in which they had to have a rabbi present for an autopsy; they also had to return everything from the body to the body for burial; of course, the body did not make this easy, as internal gasses exploded it all over the rabbi, the medical examiners and the exam room. It was horrible, hilarious and dismaying all at the same time, but they put the poor man back together as best as they could and the rabbi signed off on their sincere efforts to respect the deceased. There are some things families don’t need to know.
The NCIS episode with the Christian killing the Muslim, although plausible, was particularly maddening since conversion-murders aren’t depicted in reasonable ratios.