(2) A written statement for or against a proposed formation or change of organization or a request for an election must be in writing, must clearly specify the defect, error, irregularity or omission to which objection, if any, is made and must be filed within the time and in the manner provided by ORS 198.705 to 198.955. Any statement not so made and filed shall be considered voluntarily waived. [1971 c.727 §§9,10]