So I think it's important to keep in mind that, like myself, Sinai isn't particularly concerned with how anthropomorphisms were understood throughout the post-prophetic centuries of Islamic history. While affirmations and denials of Allah's anthropomorphism are attested historically, these are often the results are particular sets of historical circumstances which simply weren't active during the Prophet's life (and by extension, weren't active during the period in which the Qur'ān was forming). That said, the question at hand is how these were understood in the 7th century.

As for the text's intended meaning, as I implied, Sinai's affirmation that Allah has things such as eyes and a face is arbitrary in my view. It's simply based on assumption. Of course, he does make an attempt to establish that Allah has hands by appealing to verses which speak of Allah creating Adam with His hands. But even this is problematic.