I thought it looked stupid too, so I fabricated a heavy steel plate bolted to the original holes, and then lowered the license plate several inches and drilled new holes through both the plate and the bumper. It lowers the plate a decent amount and also provides structural support so it can't get bent very easily. I could have gone lower, but it would have required spacers because the attachment would have been below the peak of the bumper:
I thought about lowering it further many times, but now with the Buick grille bar it would probably mandate resetting the grille bar as well to keep the spacing looking right, and I'm not that enthusiastic.