Hardly know what to make of this one. Is the author a Christian?
Then again, my mother had the gift of faith - which is more than the grace of faith all Christians have to believe. When she prayed about something, that was it, done deal. She laid it down and walked away - what this author would call "let go and let God."
Most of us tend to pray about something, let go, then pick it up again, pray again, lay it down - on and on.
But mom did not doubt God. She didn't worry, fear or complain. Done deal. Many miracles happened in and around my mother's life. Healing miracles, of course, and more.
So, yeah, the author's position sounds very strange to me.