Amen.
Pride.. caused the fall and keeps unregenerate man in it
Most, if not every commentator would agree with you. I don't believe it was pride that caused the fall. I believe it was a lack of wisdom that comes from God. Please note what you stated first, that God must open the eyes and ears. It is the only way godly wisdom can come.
They were sinless..they did not need to have their eyes opened ..they were open until the fall..and the bondage of the will what was the serpents lie? You shall be as god.. that is an appeal that targets mans pride.. remember that is what also caused the fall of Lucifer
PROVERBS 16:18-19 NKJ
18 Pride goes before destruction, and a haughty spirit before a fall.
19 Better to be of a humble spirit with the lowly, than to divide the spoil with the proud.
Calvin notes this
“Augustine, indeed, is not far from the mark, when he says (in Psalm 19), that pride was the beginning of all evil, because, had not man’s ambition carried him higher than he was permitted, he might have continued in his first estate.”
http://www.calvin500.com/what-caused-the-fall-of-adam/