I'm pretty sure this little accident happened as a result of a trap street near where I used to live: https://www.bbc.co.uk/news/uk-england-wiltshire-22158829 The 'trap' was that on google maps it was made to look like a regular street when it clearly wasn't.
I've found many errors in Google maps over the years. I'm not convinced any of them are traps, they are just the result of not actually surveying the areas they claim to map.
Digital cartography is hard. Even without various intentional errors and distortions (many maps contain intentional dimensional non-linearities for "strategic reasons", ie. so that they cannot be directly used for directing artilery fire) the input data is full of various unintentional noise and non-sense because of the processes that were used in acquiring and digitizing that data in the first place. Processes ranging from digitizing paper maps of generally unknown accuracy with digitizer to just guessing positions of things from sharpie marks on hand-drawn map created by who knows who in the field. Trying to make some sense of such data was my first real IT job.