Straight from the link you posted:
Accessing RDS Functionality in Windows Server 2008 R2 with SP1
If you already own Windows Server 2008 R2 with SP1, to utilize the RDS functionality of the Windows Server software, you will need an incremental Remote Desktop Services Client Access License (RDS CAL) in addition to your Windows Server license and Windows Server Client Access License.
What I was trying to point out is that Remote Desktop Services is not the same as the Terminal Services. Im not even using it for a Terminal Server. Thank you for the info, since i originally posted this, I spoke with Microsoft myself who stated the same thing