No large corporation in the Microsoft ecosystem will ditch Windows due to Recall because it will be turned off. This kind of setting can be managed / customized with Group Policy tools and MDM settings.
Recall is targeted for home based users, not enterprise customers.
I don’t know the number, but you can definitely brush too much. My sister in law was obsessive about brushing her teeth so much that the dentist advised her to lay off as she was damaging her teeth enamel.