Yeah far too many songs. Probably trying to make up for the lack of music in the rest of the season.
Seriously, that episode just felt like the writers didn't fully put their all into it where it needed to go. The episode was good, but it seemed rushed, worse that keep calm and flutter on. The overall overuse of songs wouldn't have been as bad in a longer 2 part episode. Again I must say that the one song felt like it's whole purpose was specifically to make people feel like everything is going to be fine and keep the rage to a minimum.
[You must be registered and logged in to see this link.] Yeah that is kinda how the episode felt, that guy made a good prediction with that.
I like how the Library seems to have moved away from Canterlot to look like it's own Castle. At least I assume that was the library.
EDIT: Other notes.
The episode seemed like it was intended as a series Finale not a Season Finale.
[You must be registered and logged in to see this image.]Gangnam Style
EDIT:
2 Apparently there was Derpy at the end of the episode waiting for a Youtube upload to check on it. Derpy was in the episode.
EDIT:3 So there aren't going to be anymore letters to Celestia I suppose.