Nice spotting CJ, but weird!
That auto-pic from the activity was generated at the same distance to the end of that route as my recent ride where I had my first/only instance of a fuzzy pic which I noted in this thread. Pic might be a bit difficult to decipher but it shows .4km remaining for route… …
So it looks like Zwift has some sort of marker incorrectly placed 400 metres out from the end of this route that causes an auto-photo/celebration of some milestone
… which in turn would naturally suggest to someone that the route is done and time to turn around …ouch!