I actually like the sound of this. At least where I live and in cities I've visited (NY, Philly, San Francisco, etc.), food trucks are home to interesting, quality options at reasonable prices. Assuming most of these trucks are decent (which seems to be the case, based on online reviews), this'll be a fun way to sample some really good ones. Even some of the Disney trucks have impressed me (namely Namaste Cafe and Superstar Catering), but it can be hard to find where/when they're actually serving.
I'll be in Orlando at the time, so I look forward to attending. It'll be a nice change of pace from the usual offerings in DTD.