I think, above all, what disturbs me about this post is the content warning, which the poster did bother to put on, is termed as "mildly upsetting".
I raise dairy goats, and they are my babies. Due to the nature of dairy goats, the kids are bottle raised so babies being orphaned isn't as big of a deal as it is among meat bred goats like Boers who nurse their own young.
But, an animal in my care, ANY animal in my care, that got run over and had it's "skull crushed" would be deemed as far, far higher than "mildly upsetting".
I agree with Sarahver about the mentality of "I didn't like her anyways, so no biggy" is chilling. To me, that's like, freaky personality disorder, that kind of lack of empathy. Scary stuff.