No experiment to prove Darwinian evolution sans intelligent design has ever worked. No experimentation of creation without intelligent design can ever work. What's your point?
If by Intelligent Design you mean 13.8 billion years of God’s patient work then I have no problem with that.
Darwinian evolution does not need intelligent design once evolution itself was created. The laws of the universe were put in place by the creator, but once established they work without need for interference. That is what makes it so beautiful.