I always bristle when I hear comments that someone didn't show remorse. Like in this case, if she had actually said, "fuck those dead people - they're not as important as ducks," - okay, that would be relevant. But I don't get the feeling that's the case. I get the feeling it's just a personal judgment of her body language compared to, say, Sally Field in Steel Magnolias.
Some of us go through life somewhat poker faced and do not put on a big show about things. It is not relevant in judging or sentencing.
I'm not saying her sentence is too harsh here - it seems reasonable to me. I'm just ranting about that specific general thing that always bugs me.