You don't go from that to all assets are the same in next to no time.
I don't think having the same assets is the problem. It's possible to have the same assets, but multiple LoD versions with varying polygon count.
Case in point, look at this massive comparison screenshot showing different areas of Novigrad on the E3 2014 build vs the PS4 version. As you can see, the PC version has much better geometry and draw distance, but the assets are roughly the same with minor changes.
The problem that people are complaining about is that for whatever reason, recent PC footage isn't showing superior geometry like it did with the E3 2014 footage and that's extremely disappointing.