Licensing is already a big mess.
And it is not about revenge. It is about enforcing the spirit of those open source licenses. WordPress uses GPL to force users to contribute to open source.
Do you think the RIAA contributes? Instead they actively attack it.
Do you think the RIAA can evolve for the better? It has an explicit mandate to restrict copyrights. Its existence opposes the software they use.
True, sadly it is unfeasible. It is a nice fantasy.