friendship games Why did Pinkie's eyes 'derp' apart in Friendship Games?

[Puzzle 11]

About 44-45 min into the Friendship Games movie, Pinkie stands by a door as Raindbow Dash talks. In the most creepy fashion, her eyes slowly focus apart from each other. (Like crossing your eyes, but backwards.)

 

Any thoughts about this? To me it seemed too much to be an animation error. But it seemed too random, even for a "Pinkie is so random" joke. I love the randomness of Pinkie, but I just thought this was odd, misplaced, and out of character. I just didn't get it.

Any opinions about if this was intentional or an accident?

And if intentional, did it seem "normal" or out-of-place to you?

 

If you need help finding the scene:

 

Finding the Scene: In the school hallway, Fluttershy describes getting her magic pulled out when she gave Twilight a bunny. Sunset Shimmer summarizes that Twilight's necklace has pulled magic from various friends and the portal. The group walks out of the school through a side door. Pinkie exits and waits by the door for Rainbow Dash to also exit. As Rainbow Dash boasts that the contest will be no problem, Pinkie just stands there, blankly staring forward - until her eyes slowly move apart. Then Applejack draws everyone's attention to the field. The camera cuts to an overview shot of the track/field.

 

[-Octavia- 1,176]

Probably a nod to S1E25: Party of One.