There's some editorializing in the title here. The ban only covers two buildings, and any phone that allows them to add the monitoring they require (not just Android phones) would be acceptable.
I wonder how they determine that an Android device is actually running their MDM software instead of a fake program that simulates it while being observed by the authorities?
This is just so they can favor Samsung Galaxy phones. We save their ass in the Korean war and prevent North Korea from using nuclear weapons Seoul. And, this is how they repay us; typical ingrates.