That only means you can't cast it as a Cleric of a Good god. Relying on the alignment tags assigned to various things as any kind of morality is a path that leads only to madness. Also, it's not like you have to animate human (or even intelligent) corpses. Hard to see how "zombie bear" represents any great moral violation.
I like how you're trying to describe "I can spend twice as many spell slots to solve a problem" as a win for Fireball. Your whole post is basically "how contrived can I get away with my examples being", but that really takes the cake.