I remember a little because I was there for a moment and even took photos and added the type of road surface in the StreetComplete application. That's why I didn't notice these tags. Later I forgot to make some edits in the JOSM editor (I was definitely planning to add a sidewalk near the Wątok stream then).

Looking through the history, I see that these tags were introduced at the end of 2009. I don't have the photos anymore, but I don't remember there being any prohibitions that would prevent transport companies or even bicycles from entering. I doubt there ever were. I'll try to call to get reliable information. If it's confirmed, I'll remove these tags.

The second option is that your drivers can take a few photos and provide you with information. The customer who ordered also probably knows where he lives and what the conditions are like there. I don't believe they didn't drive there. Even if they didn't drive into Robotnicza Street, they have direct knowledge of it.