Earlier quoted context omitted.
Even the knowledge of exact guard patrol routes and possibly even timings inside a known military base can be extremely helpful information for someone planning an attack. Best part: you don't even have to place a scout in physical proximity as preparation and risk discovery. So this is less than ideal for military organizations.
These are most most certainly not patrol routes, but routes taken by people in their off duty time or in mandatory fitness time.
Well, a route taken regularly at 3 am is almost certainly not someone taking an off duty stroll. I do not know if you can readily figure that out from the data available through Strava. But if you can, this is bad.