I'm guessing the one being marked was some random DRK, and the person trying to lead assumed that said individual was going to be a pro-initiator with the DRK jump/draw-in.

I see people randomly mark DRKs throughout the alliance... It's funny when said DRKs don't do anything and clearly don't know what they're doing. There seems to be this stigma in many cases thanks to the DRK premade meta where people coming on DRK are expected to lead the alliance and function in that capacity for the rest of the alliance. Can't say I envy them. Mind you, this isn't all the time, but I see it often enough.