That's not accurate, Eric. They want to run MP2K4 from the server and you have to purchase a license for the server plus one license for each machine used to access the server. Here's the applicable section from the EULA.

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1. GRANT OF LICENSE

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* Alternative License Grant for Storage/Network Use. As an alternative to the rights granted in the previous section, You may install a copy of the Software Product on one storage Device, such as a network server, and allow individuals within Your business or enterprise to access and use the Software Product from other Devices over a private network, provided that You acquire and dedicate a license for the storage Device upon which the Software Product is installed and each separate Device from which the Software Product is accessed and used. This license does not give you a right to allow anyone to access or use the Software Product over the Internet. You may also exercise the additional license rights described in the following sections. A license for the Software Product may not be used concurrently on different Devices.