Yes, the rent thing was idiotic,but, completely believable. In today's military, if a soldier is wounded and laying dying, he better either die, or make sure he keeps track of his US Military owned items like his armor, his gun and so forth, or he will be charged for them (remember these news stories a few years back?). If we do that in today's Government to our soldiers that we supposedly care so much about, it is perfectly believable that B5's Earth Government would pull something like they did with Sheridan in this episode about the rent.
Regarding the mysteries, they will keep coming, and almost all of them since the beginning of the show will be addressed and played out. There are only a couple of things, that Real world stuff messed up.
Great story Omaha