Interesting, nice detective work!
As an aside, I've noticed a lot of the screenshots that they used in documentation, on the box art, etc don't actually attempt to be real representations of game play, instead it looks like screenshots from early debugging missions; for example, there are at least a couple out there that appear to be taken from the mission us_them.dll, which isn't really a real playable mission: it was essentially just a test mission with all of the Eden and Plymouth buildings laid out on a small map. We ended up removing it from the OPU version since it's not really playable (there are no mission objectives, and certain players are forced to be eden and plymouth, respectively).
There was also another Dynamix map included with the game that was not used, that spelled out "DIE, BUT HAVE A NICE DAY" with a smiley face. I think it's been used for some missions that people have created here.
But yes, ZZJ could've done a better job when he made it playable. I remember the "meteor showers" were particularly annoying, just because it flooded you with about 20 disaster warning messages.
Ahh yes, I forgot about those. Maybe we could consider just remaking/tuning this mission so that it's actually somewhat playable? (at the very least, any of the disaster-setting function should not be getting called if disasters are disabled in the settings).