Basically, he is getting an extra counter that didn't used to take place. If Echo has Command then it's a three hit counter (GS's counter, Echo's assist and Turret's assist) that is enough to wipe out a full-health R7 Malak...in other words, pretty much ****.
This isn't in the patch notes, so I'm guessing it's not expected behavior and perhaps created by the fixing of this bug?:
UNIT - Fixed an issue that would cause General Skywalker not to enter “Cover” if reduced to 0 Protection from Resistance Hero Poe's Unique ability “Spark of Resistance”.