Just checked: Strava Heatmap matches with the path of way 734000586, so there is no huge geometry error.
The trail visibility varies a little along the way, so it would be OK to do some refinements here.
In OSM there is a rule: We do not map for routers/renderers. It is up to data users like Komoot to do the right tagging evaluation.
The connection to H5 is obviously used by many hikers and a router should have the ability to route here, so a path with trail_visibility=no makes sense here.