ATC .............INFORM refers to telling ATC that you're stopping. Presumably they'll see you doing that unless in Low Vis conditions without Ground Radar.
The rest of the checklist is meant to be carried out by CM2 monitored by CM1 until CM1 makes the decision to Evacuate or not.
Note the new line to inform all concerned if you're not going to evacuate. The checklist merely gets the a/c ready for a POSSIBLE evacuation. The final decision is up to CM1.