They may not be anything special - but they are definitely not like any plugs I have been used to seeing in my 50-odd years of changing them out. Here's what I am used to calling a spark plug - out of my Ford with a 460 V-8:
And this is what the new plug in the Triton V-10 looks like:
Note that on the old-style plug the threaded portion is at the bottom end of the plug. On the new one, the threads are in the middle. And that long, extended nose is what breaks off inside the head when one tries to remove it. Our mechanics were trying to remove another broken one today. The trick is to remove the broken part with Ford's special tool without having it drop out of the cylinder head down into the combustion chamber. If it does, the head has to come off.
As far as the spark plug popping out of the head, taking the aluminum threads with it, they tell me that occurred only in the first couple years or so of the Triton engine. That has not happened to any of our newer pickups so hopefully Ford got that fixed. My van is a 2007 and I sure wouldn't want that happening to me, some of the desolate places I drive.