Humans are fungible, typically -- or at least that's the thought process of management. Sometimes management are literally removing an unnecessary department or need to merge departments because of market conditions -- and they really don't have time to get into the nitty gritty about how that's going to affect your job.

But also humans are messy apparently, so rather than try to introspect about what went wrong to make themselves a better manager, or improve their hiring process, or figure out how to remove bad managers, they punt: "Humans are messy. Metrics are actionable. Humans aren't metrics. shrug."

Humans can be replaced, sure, but you can't replace a surgeon with a landscaper -- but that's not going to stop some managers from trying!