The article doesn't really explain well the current shortcomings of the current drm system. I mean it does say that it would fail if the system ceases activity, but that's also true if they use the system to run blockchain.
All articles nowadays are like that. They just state the very obvious and then in overall form, but fail to actually provide the necessary details making the article complete. It's all part of their rush-to-publish way of doing business; ad revenue sluts they are.
I guess they're talking about taking advantage of the decentralization of block chain?
It could be, but I very much doubt that. In most cases all these businesses eye to have their own centralized permission based blockchain developed. I think the main clue of this article is that it points out that instead of Sony relying on servers that store all the data right now, everything will be stored within their own blockchain network (that could be distributed throughout the world) to ensure that every bit of their data remains safe and accurate.
In most cases when businesses store their data on servers, one error could mess up things badly, where in case one of their nodes corrupts or just fails, they know they have plenty of exact 1:1 copies of their data elsewhere, where without permission, the previous blocks can't be rewritten, and thus aren't subject to external manipulation.
