Opening a Smart Materials Classic screen in the Site sub menu typically asks for this license. Expanding this branch of the menu tree will not change the license, only if a related screen is opened from there. The same applies if you open screens of the Site dashboard in Smart Materials Web.
The Site dashboard in Smart Materials Web contains pages which existed already before version 10. These screens will continue to ask for a BIR license. See the chapter Smart Materials Business Intelligence Reporting (MBI) - BIR.
Whenever a Site or BIR license cannot be retrieved from the license pool in the mentioned cases, the application will try to get a different license. This is described in Details on Licensing Workflow and Components.