You're right, there are multiple roles for FinOps in an organization from the engineer up to finance and engineering management.
This is tackling one aspect of this - highlighting the cost to the engineer.
This is tackling one aspect of this - highlighting the cost to the engineer.
It adds things like management of guardrails and policies that can be maintained by a finops role, or engineering manager. PRs can block or notify if thresholds are going to be breached by a specific PR.