freebeer
Not from my perspective.  That they are so far off the aerials implies to me this is personal observation/knowledge, as opposed to copying any source.
As far as legitimate sources, I am not familiar enough with the legal situation in your country as to when something in planning gets officially published and thus becomes common knowledge (an Amtsblatt is what is referred to in the german forum as a legit source, and where rights issues are given apparently greater importance than I have seen here, but different countries have different rules - such a source may be off-limits in asia).  As I understand it, federal gummint work used to be public domain, while apart from that there may be a patchwork quilt of local gummints with differing amounts of protectionism; as I recall reading certain local Texas gummints were notoriously difficult.
Deletions out of principle should be done on the basis of a complaint, which, although not knowing the inner workings of the DWG, I do not think has come into play here, whereas due to past complaints, where I see an item sourced from a forbidden source, be it BayernAtlas, SwissTopo, or Google Maps (with a few known exceptions) I delete said object without further comment.
But that commentary was meant for a different Notes thread.