While the named defendants may be the board members, the real defendants are all of us, the members of USPSA, as we will end up paying for this.
I have served on the boards of a number of non profit organizations, and not a single time have I had lawyers examine all the historical corporate filings to make sure everything was done to the letter of the law. A deep dive would likely turn up some defect in nearly every organization. Of all the faults of the USPSA board, some historical issue around by-laws or governance hardly seems worthy of condemning the current directors.
A single digit percentage of civil suits make it to trial, and those that do take years not months. Litigation is just a tool to get settlement leverage. The board has made a bunch of enemies and that is not helpful. Frankly I am surprised there hasn't been more litigation by banned members.