Duplicate KMS licence key

In the Microsoft Volume Licence Service Center, we have noticed that the KMS Licence key is the same for several Windows 10 products (Education, Enterprise, Pro for Workstations). The MAK keys are all different, but the KMS keys are all the same. When installing Windows using this KMS key, but a Windows 10 Education ISO, it shows as Windows 10 Pro for Workstations. Are the Windows versions now all the same?