The BK PLAN asked the BK Court to cancel the equity (the shares) so it is evident the shareholders get nothing from the BK Reorganization.
It's not right, but that's the U.S. bankruptcy laws that place shareholders as the very last to receive any compensation if there is any left. Secured Creditors get most of protection, and the company's entitlement to survive receives the next protection. Unsecured Creditors come in third place. Preferred shareholders, if any, come in 4th place, and common shareholders come in last place, usually losing their entire investment.
To bite the worm of incite is to bite the HOOK of the antagonist . They win .