>>23400690It would actually be more accurate to say that Tekkadan only survived for most of the series because they always made high-risk high-reward decisions, hoping it would make up for their lack of resources and lack of smart planning, and they only needed to fail once for all of it to fall apart. In this particular instance, they were betting everything on a single Dainsleif shot where everything had to go right (the Hotarubi not getting immediately completely destroyed by the Dainsleif barrage, Shino and the Flauros surviving said barrage intact, the wreckage getting close enough to Rustal's flagship to allow for a shot to be lined up, and the Flauros actually being able to take the shot and land it). Julietta disrupting the shot at the last moment could just as easily have been sheer luck, as she also could have planted her weapon into Flauros before he took the shot if circumstances had been slightly different.
If Tekkadan had been smarter about who they allied with, made safer bets without the goal of becoming King of Mars in the fastest way possible, and lots of other things, they wouldn't have ended up where they did. Which is kind of the point. But the real issue is that the audience is expected to keep rooting for Tekkadan despite all this.