Must have missed this the first time through, glad you bumped it!
The less-conventional chronology is a fun twist, though it wasn't immediately clear until several shots in. Once I figured it out though, it was really cool. Both the mug and chicken gags were fun and original, though I feel that the final twist was undermined by the title. And I think I'll have nightmares from that last shot...
I actually like the charm of the opening shot. Sure, it would have looked better masked, but the composition is nice, and I love the brick-built clouds. The animation is more than workable, and I like the cartoon style, though it could be smoothed out some more. There were a number of prop/set bumps that were pretty apparent, and the briefing room set seemed to some random things thrown in to fill out an otherwise plain set.
I do like that plane interior, and the darker lighting looks great. It was odd seeing the top of the set at 0:44, so you may want to watch out for that next time. I love the plane explosion, but agree that the forest is a bit thin. Perhaps some more bushes, grass, and leaves on the ground would help fill it out.
Sure, some of the technical things could have been polished up, but it's still a highly entertaining and enjoyable short.
Glad I noticed it.