God doesn't do anything God doesn't approve of. But we do things God doesn't approve of. And through it all, God (being the good Father that God is) waits at the door with the lamp lit. And when we have turned toward home, God runs to meet us. God doesn't hide from us.
God hid for the following 2000 years? What about the Law? The Prophets? What about God's revelations to the Hebrews? No. God has always been here, because God is always Creator of God's creation. God doesn't take pleasure in hiding God's Self. If God reveals God's Self, then God doesn't approve of hiding, so God does not participate in hiding.
Sure they did. They became aware of the difference between good and evil, and became like God.