Mmyeah, it is true that compared to other episodes, they were a bit dumb. Antagonizing nice characters like AJ, and making RD--
O_O
I just remembered something. Back in episode "Griffon The Brush Off" (all the way back in season 1), RD wanted to play some prank on Fluttershy. Pinkie opposed to that, for obvious reasons (Shy is quite sensitive).
Now, in this episode, RD plays an even more shocking prank on Fluttershy, and this time, Pinkie doesn't see what the problem is!
...I don't get it.