Yeah, that's true.
Although~
If we wanted, we could do short prologue stories of how the captain/pilot/main man/woman on the ship met the crew and discovered the ship itself, all in PM's. Then, when we have all that done (maybe 2-3 paragraphs explaining the arc of "Hey we just met, now we're agreeing, and now you're part of the crew" like in the episode of Firefly "Out of Gas").
Just a thought if we really wanted to go ahead with prologues as an alternative and keep the primary story inside of the IC.
Now then, here's another question: Reavers and the Alliance. Or better yet, Reaver/Aliiance-like groups in our galaxy? Did we want to include those, because I had an idea for a war-like race who's motives are similar to that of the Klingons/The Daleks and a government group who is actually more corrupt then it looks (my character actually used to work for them as a pilot before he found out they had been committing horrific acts in terms of scientific discovery/genetic intervention)