There was not much trust among the space pirates. They were merely gathered together because the Kurfürst families were powerful and gave abundant rewards.
Letting Boss Bai be the commander of the jumbled "National Protection Army" was also meant for him to take the bullet for everyone when things didn't go well.
The space pirates never hesitated to shift sides. While the Kurfürsten did look stronger for now, what if something went wrong and the reformists really defeated the Kurfürsten in the end?
Later, when the reformists assigned blames, the commander of the "National Protection Army" would naturally be the first to be executed!
For those heads of space pirates who had raged the sea of stars for decades, none truly agreed with Boss Bai's leadership.