I have to say I am disappointed on how this is going down.
My thoughts are we voted on this and it passed. There were emails sent out saying we would have a band director meeting, not just a marching band meeting. If you chose not to be there and you are not happy then you can make a proposal the next year.
I believe all students playing the same instrument should play the same scales in the audition. (trumpets play B and F, saxes play G and Db depending on what the VP draws for the various instruments) It’s the only way to make it fair for all students that audition. I can not speak for all State Bands but I know in AZ all instruments have scales selected (different scales for different instruments) the day of the audition and play the same scales in their audition.