I've heard the it-was-screwed-around-by-the-network argument for Crusade before. It doesn't hold water. It wasn't a lack of a coherent ongoing story that was the problem with it. The problem was in the individual episodes and the way they were made. Similarly, being seen in order doesn't improve Firefly -it still doesn't connect properly. There was something very dumb and shoddy about Crusade, like an effort was not being made. No way was any of it better than B5. B5 had feeling. Crusade was limp and by-the-numbers.
Threshold was mediocre at best. Worst use of Brent Spiner ever. The rival show Invasion was much better.