Personally, I'm kind of shocked, but I've also become jaded to this sort of thing. Here is an example of someone doing something incredibly stupid and unsafe in order to make a buck - without any concern for their own safety, the safety of the people who work for them or the safety of their neighbors or community. Converting a bus into a matzah factory? With a live gas line? I think "Chaim Yankel" (the YW commentator) stated it best:
Why can’t people just do things, by the book? Building and fire codes are there for a reason.
This is a tremendous chillul Hashem. She tells the reporter, that its in the bus, because its a religous bakery. Oy..To be honest, while the religious aspect of it may get a lot of play (and, indeed, cause a chillul Hashem), I don't think that the person was doing this to make a religious point or serve a community that would otherwise have to do without matzos for Pesach (for this, see the story of the mikvah in Postville). This was simply someone who was looking for a quick way to make a buck, nothing more.
Personally, I hope they throw the book at whomever was doing this.