My entire team receives the billing info every month.
Billing should be limited to organization owners only and not viewable by the entire organization.
We definitely want to improve this experience so that not all members of he organization have billing visibility in the future. We have a plan to revamp our authorization system over the coming quarters to make this vision easier to deliver.
In the interim, you can control the month-end billing email recipients by setting a Billing Email (see https://docs.atlas.mongodb.com/billing/index.html#update-your-invoice-address-details-as-needed). This way only the billing email address will receive those month end summaries. I know this isn't exactly what you're looking for but hope it helps.