Because of the fact that most criticism of this nature tends to be cheap political grandstanding, we are no more apt to blame the Katrina aftermath on Bush than we are to blame Obama for the Gulf/BP oil spill response.
Karl Rove, writing for the Wall St. Journal believes otherwise. He raises some very good points with respect to state and local vs. federal jurisdiction. However, we still can't shake the overarching notion that what this all speaks to is the cumbersome and unwieldy nature of federal government, it's agencies and bureaucracies rather than who is in the Oval Office at the time.
So, in a sense, Rove is right: This oil spill is Obama's Katrina and he will have to face the music for some suspect PR and visuals rather than anything substantive his administration did or did not do.