Lest we get smug about Gideon's quest and request for assurance and certainty, not the patience and extravagance of God.
He was undertaking a pretty big task and he did not want to go into it alone.
Fleecing may not be the most spiritually mature way to seek the will and call of God, but God meets us where we are when we seek Him and we need that!
Then Gideon said to God, “Let not your anger burn against me; let me speak just once more. Please let me test just once more with the fleece. Please let it be dry on the fleece only, and on all the ground let there be dew.” And God did so that night; and it was dry on the fleece only, and on all the ground there was dew.- Judges 6:39-40, ESV