Sorry about the confusing product and pricing page.There are typically two different scenarios for pricing: Users can be employees, consultants, contractors etc. or Users can be consumers, customers etc. Depending on the context, the pricing differs.
Not only can you remove the user/employee from the centralized service (Okta) but you can also hook-up to various HR systems (if you so desire) like AD, Workday, Ultipro, BambooHR etc. and have them act authoritatively to determine if an employee is employed, on-leave or has terminated their employment.