[takinola]

Because you want to control who uses it (offboard separated employees, onboard new employees automatically), integrate into your auth systems to make it easier for employees to access, get an SLA if something goes wrong, connect to your data auditing systems, etc, etc. Companies have a lot of needs outside of just the core functionality of a product.

[kube-system]

You might want to understand the politics and business dynamics before you go too far down that route. You could just end up getting your product blocked and/or replaced with a competitor instead.

[fijiaarone]

Exactly, you're selling inconvenience. Management usually has to work hard all day long to annoy the employees under them.