I think people are taking my comment about filler waaay out of proportion. While I do love episodes that have consequences and develop the characters, I have no problems with filler episodes as long as they are really well written. Times's Arrow
, Frame of Mind
, and The Survivors
from TNG are all filler episodes, but I still really like them because they are great and interesting stories with good guest stars, interesting plots, and they make good use of the main cast.
made very good use of B'ellana, but the guest characters weren't particularly original, and the plot was only semi-interesting. Those are the main reasons I gave this episode a 5 out of 10. Being filler was probably my most minor criticism.