What most humans decide to forget about angels was that what they saw was not what an angel truly was. They forget that to not go around killing everyone who peeked a look at them, they chose to wear vessels. They took it as given that their visage reassembled their own, because in their brains if God created them with bodies, then angels must have them, too. That was why when an angel greeted a human, they misunderstood their stoic stances and voices, faces devoid of emotions and stiff attitude as perfection—angels being above petty human responses, like emotions and reactions. Humans wanted perfection for the divine and they molded angels to their view.
Angels were not perfect.
If they looked apathetic it wasn't because they were above emotions, tough Gabriel won't deny that most liked to think that way.
