Yeah that looks really silly, 2:10.I find the one where the aircraft wing went through it interesting. You were left with half of the board floating in mid-air. Physics win.
But I agree, some good potential here. Not really the most inspiring way to show the technology off though.
Generally what I didn't like in this was:
1) The bits of the walls that are left standing seem oblivious to what is going on around them. Smash a vehicle through the part of the wall next to it and small thin fragments of wall can sit there completely rigid. Essentially only parts of the wall that come into contact with a foreign object seem affected.
2) Creates a 'confetti' effect where lots of flaky particles seem to come off without much sustenance to them
On the flipside, things don't need to be realistic to look impressive in games.