In Surat 'Abasa, its interpretation is about the Messenger? So how can the Messenger frown?

The Messenger, peace and blessings be upon him, was a human being endowed with all human attributes that are not considered deficiencies. He frowned at Abdullah ibn Umm Maktum, the blind man, when he came to seek guidance. The Messenger, peace and blessings be upon him, had with him one of the great chiefs of the polytheists, so the Messenger turned away from the blind man and turned towards the polytheist, hoping for his conversion. Thus, the rebuke to him, peace and blessings be upon him, was revealed in Surat 'Abasa. Aisha, may Allah be pleased with her, narrated that Surat "Abasa wa Tawalla" (He Frowned and Turned Away) was revealed concerning Ibn Umm Maktum, the blind man, when he came to seek guidance from the Messenger, peace and blessings be upon him. The Messenger had with him one of the great chiefs of the polytheists, so the Messenger began to turn away from the blind man and turn towards the other, asking him if he saw any harm in what he was saying, and he replied no. It was then that the revelation descended.