Mirage does not receive EVO points that other legends receive when teammates interact with the following: assault bins, support bins, ring consoles, recon beacon, and scanned care package. Every match, teammates achieve blue EVO shield while Mirage's is still white.
This has been consistent for the last week (possibly longer... I took a break from playing him).
Things that Mirage does get EVO points for: an EVO Harvester gathered by any legend, a support bin opened by Mirage himself (but not by other legends), interactions with bins/beacons/care packs that correspond to a teammate's class (e.g. scanning a ring console when there is a controller legend on the team), a teammate opening a care package, and all battle-related actions (e.g., a teammate getting a knock or respawning a third).