I'll repeat a question I posted previously: would you give Hitler praise for bringing Germany's economy back in the '30's?
Sometimes, good things can come out of very bad situations. Bush used terrible judgment and rushed the country to war. He cherrypicked evidence to do so, exaggerated the threat & even lied. Once we invaded, a series of abysmal strategic decisions were made, not least of which was the decision to disband Iraq's army. The toll in death & other costs is almost immeasurable at this point.
In light of such circumstances, talk of giving Bush "credit" or "praise" for one potential positive in Iraq is somewhat laughable, if it wasn't so tragic. I don't give LBJ credit for a peaceful Vietnam. I don't give corporate polluters credit for accelerating the development of wind & solar energy.