That glosses over things, as it relates to the PS4 Pro situation.
CD Projekt RED was asked about improvements for the PS4 version to take advantage of the Pro when it was coming out. They said it was impossible for them to do anything. MS announces the One X, and CD Project announces a patch before the hardware is even shipped, and eventually says that maybe doing a patch for PS4 Pro is possible after all.
They really should change their name to CD Project Green after that, and the whole Witcher II console situation, but that is another story.