Boulders Over Position 2

[JesseK]

CHS Hampton Roads, Finals 2 was just uploaded to YouTube (thanks Triple Helix ).
https://www.youtube.com/watch?v=VeguT-c1nd4

In it, our human player scores 2 boulders over position 2's Ramparts. If timing were slightly better, there probably would have been three over Position 2. In the video, boulders are at the top of the screen from the left side.

Does anyone else have video of this happening with Ramparts or other defenses? It was a surprising thing to be able to do in a live match, and it's not exactly something the average alliance expects to be a consideration when selecting defenses.