I have to say that those piano-note stingers (heard here starting at the 25 second mark) always crack me up. Nothing wrong with the musical idea - simple, short, effective - but it's so cold and stark and hopeless - sounds like it should be in a post-apocalyptic thriller with characters looking out drearily on the morning sun cast across a deserted wasteland for any sign of anything - human life, food, animal or plant life. There's also roughly a metric ton of excessive audio processing on what started as a lone piano key strike but finishes as a lot of reverb and delay and frequency-boosting cranked WAY up to "11" to add to the hopelessness. Geez. All they need is some 4-year-old's voice with equally added reverb crying out faintly, "Mommy?!". I give them credit, though - you can hear those stingers from another room and know what show it is.
Anyway, they seem to be used a little more sparingly this season but I'm thinking it's because we're not toggling between two subjects per-episode. Personally I'd enjoy maybe an April Fool's Episode where Dr. Tonya Harding, Lurch and others do A-cappella re-creations of them - Pentatonix style!