The provided XML files list which license the data files are under. The files with nonfree in their names are licensed under the Creative Commons Sampling Plus 1.0 license (details in the XML files), which is incompatible with the the FSF four freedoms, the Open Source definition, the Debian Free Software Guidelines (DFSG) and I guess Fedora's guidelines also. Until these files have been replaced with free versions, I would suggest that you strip these files from the Fedora package.
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