In a sense, a pastorate is like a marriage. The only way to make it work past the honeymoon stage is for both sides to agree for better, for worse, for richer, for poorer, in sickness and in health.
If other church members contact you about the post, let them know that you support the pastor, and they should as well. It only takes one or two strong and supportive church members to bring the discussion to a needed ending.