So you'd be perfectly happy if the auto-naming continued provided that it accurately determined the name of the area that you were when you started recording your activity?
It seems that the scheme is <Location> <ActivityType>. Even if the location is unspecified or incorrect it is still not meaningless. Inaccurate maybe, but certainly not meaningless. It seems that in most cases it is better than the previous behavior of using Untitled as the activity name.
That said, there is no option to disable the automatic naming.
still don't know what or where its Florida Estafeta, has no sense, is not a near or known place, even if you google it, theres nothing in Buenos Aires with that name, it isn't a Neighborhood, it isnt a City, neither a Restaurant!