Do you have a source for this? I don't see any indication from a quick Google other than this thread as the second result.
The license at: https://github.com/juce-framework/JUCE/blob/master/LICENSE.m...
indicates you can just license any module under agpl and avoid the JUCE 8 license (which to be fair, I'm not bothering to read)
https://forum.juce.com/t/archived-juce-8-eula/60947/149
And sure you can license under APGL. It should be obvious that's undesirable.