It's an act of pure desperation.
Basically the anti-Sony camp desperately clings into the slightest bit of potential Sony misfire and they make it seem like this colossal 'concern' for Sony and PS4. We saw it with the lack of DLNA early on, then it was the lack of 4K Blu-ray drive on PS4 Pro, and now it's the consistent and annoying cross-play nonsense turned into this massive blown out issue.
All the while, the slightest change of the graphics in any of the Sony's high profile games lead to this ridiculous and downright baseless controversy.
This just shows how miserable and petty some people can be.