The first printing of Batman, Vol. 3: Death of the Family hardcover shipped with a special acetate dust jacket whereby removing the dust jacket you can reveal Joker's face:
It is based off this style cover design that various titles during the Death of the Family event featured:
The original cover designs had the white background, so they stuck with it for the trade. Could they have switched it to a black background for the trade? Perhaps. But maybe the acetate dust jacket effect wouldn't have worked as well or properly.
Subsequent printings of the hardcover don't have the special acetate dust jacket cover, but they retain the white stylistic look.
All things considered, the divergence to a white background for the special cover is a lot less egregious than using the wrong spine logo.