"Section 1126 sets out the rules for plan acceptance. A class of claims accepts a plan if such plan has been accepted by the vote of creditors that hold at least two-thirds in amount and more than half in number of the allowed claims of such class. The two-thirds in amount rule (but not the 50 percent in number) applies for the acceptance of a plan by a class of interests" - Whitman and Diz
Class of interests means shareholders. It looks like I was confused with the 50% need in number and maybe M&M could have had a shot for POR approval.