So I wrapped up the Dam sequence for... I dunno, the tenth time probably. And I got to thinking about the kind of committee bullshit going on in the fiction.
(oh yeah, spoilers)
Let's look at this pragmatically. You can say it's all about the ultimate evil's ultimate plan, but the game establishes there's a lot of politics and mismanagement happening behind the scenes. Decisions are being made. It boils down to: the Motavian security force is hunting the protagonists down, failing miserably until they get to the last dam, at which point the security force has to say "fuck it, we're shipping these assholes to space prison!" At which point the problem becomes someone also decided to crash the space prison into Palm, because fuck that whole planet (play 3 & 4 to find out why).
There's a really great outline of what the PS2 plot almost was, so we're teetering on the brink of fan-fiction here. Having that many plot holes is helpful, certainly.
I have the PS2 PS2 remake. I guess I should really play that for my eleventh time to see if there's better exposition for this sequence.
Also it was rather good that the Oh Dam achievement pops when you get captured. They did put some thought. ;)