So..."Triple Threat"... ...I don't like when Applejack and Rainbow Dash butting heads like this, especially considering this takes place after "Non-Compete Clause". I did like how level-headed and smart Pinkie was. Just the fact that she's wacky doesn't mean she's stupid.
-"Mystery Voice": That...was massively out of character for Applejack. She would never disrupt clases in such a matter. Furthermore, why are there still classes in Hearth's Warming? -"Escape Room": Sadly, this is in character, since Pinkie tends to be a massive jerk even if she doesn't mean to (case in point, "Filly Vanilly"). Still, she should have figured out the the other Five weren't having fun.
"Ail-Icorn": Seemed like a rehash of "A Health of Information", but without the gravitas and tension of that episode. Still, it was a very funny short.
"Teacher of the Month": Personally, I loved this one. It shows how kind and friendly Fluttershy is, and how great teachers she and the rest of the Mane Six are.
"Starlight the Hypnotist": I fail to see the point of this short. Twilight has never shown a fear of ladybugs before, and she most likely won't after this short. So, there's no reason to introduce this plot point.
"Sundae, Sundae, Sundae": once again, I fail to see the point of this short, other than "Pinkie needs to tone down her hyperness", but we already knew that.