[wvenable]

Providing a license is not surrendering copyright -- in fact, just the opposite. In order for anyone to make a copy of a copyrighted work they must have a license to do so. The license sets the terms of that copying. This is the fundamental aspect all copyright.

I don't see how if the license says that one can modify and repackage the work without limitation or restriction that the person providing that license can argue for any violation of the integrity of work. If they can they copyleft is effectively dead.