The private sign is for another way going NE from this node https://www.openstreetmap.org/node/9360904268#map=19/49.62370/5.85489. The way (missing) you set private goes more to the E with slight curve to NE, visible on your photo at right of the sign and can be referenced as the one along the border of the forest. Again what you suggest is false and is misinformation. Another example of bad contribution!
For the record: https://drive.google.com/file/d/1CrlLmJtShsmZCnn3ypX7OYPfbj-vqQGw