Like with most problems, I would start by starting the discussion internally and attempt to identify the board’s shortcomings. I’d then ask people outside of the immediate group for feedback on their perception of the board and what they believe the board’s shortcomings are. I would avoid trying to explain, justify, defend, etc. anything that people might point out. Keep in mind that the purpose of this exercise is to ask for feedback.
You might find that some people may not be comfortable offering feedback. Several things might cause this, but judging by your response above, I suspect it’s because the board doesn’t currently foster a welcoming, respectful atmosphere. Keep in mind that I’m an outside observer with no ties to the region. All I did was stumble across something that stood out to me and asked a question.
To answer your question more directly, I would work to welcome anyone who wants to help with respect and encouragement. The objective of any FIRST organization is to inspire. Scaring people off isn’t inspirational. Challenging people isn’t inspirational.
To reiterate, I’m just an outsider with absolutely no skin in the game. I’m trying to offer feedback on the sliver of interactions I’ve had thus far after pointing out something I identified on a website. If I’m already put-off by your reaction to my feedback, what must others in the region think?