Whos bright idea was it for everyone to get shot out of a cannon?

Look at Dash’s expression here.
 
Kinda like her sister, Scootaloo, when she did a crazy stunt to go somewhere.
 

 
Assuming that this is intentional by the animators, we see more reasons why these two make really great sisters.

Looks like they are being shot into a tornado.

Blastin’ off again-to save the day!
 
Gotta stop Twilight from martyring herself, I guess.
 
Course they give Crazybird plunger duty.

Spike’s not that small is he? Then again, the cameras they use for TV do add 10 pounds.

@Vaidelot 
This.

I wonder why they needed this at all, considering that they have the pegasus who could, as we’ve seen in “Sonic Rainboom”, fly at supersonic speed while holding four unconscious ponies…

Pinkie is annoying, UGH!

So 3d..

@Masem  
Fluttershy is so scared…poor pone:(

@RyuSpike 
Definitely 3rd act. But here, I think its more that the storm that the SK creates around the castle area of Canterlot is impenetrable to the airships, but they are able to rig Pinkie’s party cannon to launch the Mane 5 + Spike through.

Hmmm… Taking in the context of this scene alone, I can guess what is going on. Considering that we only see the Mane Six minus Twilight, this scene is taking place around the same time as Twilight is with the Storm King and Tempest. Which could mean that she was either captured by the baddies or surrendered to them to keep her friends safe. I’m voting the latter because that is such a Twilight thing to do. Considering that we also see the… griffon(?) pirates, that means that this is probably taking place near the third act.
 
Another reason why I think this is from the third act is the location. The buildings and tents look like Canterlot in ruins. Obviously the result of the invasion that took place. If the pirates are there then that means that they were stranded there. I am not sure, but I feel like they were the type of pirates who use a flying ship. Which could mean that Twilight’s gang and their new allies tried to take down the big bad’s ship but utterly failed. Stranding them all on the ground. Hence they don’t use the pirates’ ship to get up there.
 
But that is all just speculation.

@ice1517 
“I’m excited, who is excited? I’ve never been so excited!” 
“You, ponies, are crazy.”

@ice1517  
I know a tiny bit of German but more less it that Pinkie is very excited.  
Edited 2nd time:  
@Background Pony #D4BF  
Ok, then. Thank you.

Any translations on what they were saying?