Yes, my understanding was that the protection was in place for just that reason – so that authors wouldn’t get screwed out of developing different versions of their own products. Just like you can’t take an extended license of an HTML Template on ThemeForest and turn it into a WordPress theme.
In my mind, turning a JS slider into a WordPress slider doesn’t meet the criteria for a “new work” (required by the extended license), since the main code base and function of the work is the same – it’s just in a different wrapper.
But this is one more reason why I opt out of the extended license, just to be safe.
Tricky situation, to be sure. I believe support is on it so it’ll be interesting to get an official response.
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