Technology using blockchain will fix this issue I think. When artists will get paid directly from streaming services using blockchain technology the whole problem will be solved, new technology will change how royalties get paid. Artists will get paid pro-rata instead of the big pool. There are already pilots running, I hope it will be implemented in the next 2–3 years.
To be honest I thought this move was not quiet original, it’s already done a couple of times in the music industry by other artists. Only because it’s about Radiohead’s album people are talking about it. They could have done something more creative… at least nobody else will do the same now (hopefully).