Also, I've been trying time and time again to get a different route with both Mori and Akello and it's not happening. Not even when I choose (pretty much?) ALL THE CONTRADICTORY choices @Mori, since his route is the most simple, obvious and straightforward of the two, and still get the Monster scene.
I wonder by now if I'm the only one who's run into this of if it might actually be an error...
(Btw, I'm commenting the route part of this comment on both Akello's & Mori's route pages, the one on Mori's is actually the copy as the topic of routes came up in my Error report on Akello's page. This is info for people who haven't seen all and are curious.)