I was looking to go somewhere over President's Day Weekend, and found a few good fares to FRA. However, most of the flights involved a 764, and apparently on this plane the exit row seats aren't marked as premium seats? (I did a few other searches, and each time I looked at a 764 seatmap, if there were exit row seats available they did *NOT* show up as being reserved for elites). What gives? For the flight I want, there are no exit row seats, and I suspect they are taken up by non-elites...

NB: also sent a TTU to ask for clarification