None of this is particularly unprecedented, it's par for course at this stage of an unreleased product's lifecycle. We had similar issues when the first "HD" consoles were coming to market well before most of the market had real HD TVs and traditional media wasn't fully up to speed either. The question of what improvements are appreciable to the consumer always has to be addressed at the individual level - it's different for everyone.
The message is no different from a dev saying they're not remastering an already released game for a brand new platform. The message is no more mixed about how new hardware gets software specific to its capabilities than any previous console transition. Some older titles might get a refresh on the new hardware, some won't.
To me that message from from CDP could easily be interpreted as Pro Patch = 4k.