"Maybe YOUR god is too weak and powerless to do such a thing, but I know that MY GOD, the eternal all-powerful God of the universe, could have done with just the sound of His voice. I believe." If it's a matter of who gets to claim the most powerful God, does someone who believes in a God that did it all in an instant get to claim bragging rights over someone who says their God did it in six days?
If GOD had given us all the 'technical and scientifically provable evidence' about the creation of the Universe, the creation of Earth, the creation of mankind, and all life on Earth, there would be no need for 'faith'.
It would have been counter-productive, would it not?