firing etiquette

so, i received this email today @ work:

"This is sent to let everyone know that (name redacted) no longer works for (business name redacted). If this creates any problems for anyone, please see (h.r. person redacted) or myself about your concerns. Thanks."

obviously, i took out names to avoid any issue, to embarrass anyone, or to expose my employer. this isn't the first such email i've received, but they've always struck me as odd and callous. i understand that they need to notify the rest of the staff that a particular employee is no longer there, but is this the best way to go about it? what do you think?

when someone has left there under good circumstances, or their own accord, they have often sent out an email about their leaving. or not at all. i'm not sure how they would handle it if it was a layoff. it seems these emails go out when someone gets fired.