Not that Bastion knows this...it's designed to go tits up, it's mainly to introduce the characters of Loos and Bastion to each other, and when shit hits the fan, obviously, you can guess what is going to happen. It's a tense situation- but Bastion is taking rapid action in order to save these journalists, and in that sort of heat of the moment, has perhaps forgotten the extent of which they are surrounded, still ploughing on regardless. I can assume that the Marines are still able to project some level of fire in support of Eduard, GLs and sniper fire from the roof to at the very least, pin down anyone watching out, and at that point in time, what happens between Bastion/Loos is going to be very interesting.