Is it not possible for a bad board to affect the team? And if so, isn't any short term pain that helps remove said board a longer term benefit to th team?
So, it could be said that whilst hurting the board may initially also hurt the team in the short term, it will actually help the team in the longer term?
So, by renewing your season ticket (and thus, by association, endorsing an arguably 'bad' board) you could actually be damaging the team.
An interesting paradox either way...