Hello! Actually the fine beige coloured way as you say here https://www.openstreetmap.org/way/807230581 is originally brown like the other track here https://www.openstreetmap.org/way/425169650 (well you will see it as orange because it is a direct link selection, close the left sided window and the map will be normal). Earlier this year there was a landslide and therefore it has been changed to an inaccessible track, hence it changed to a faded colour. 

Now about your note, is it now back accessible as a track? Also, you said it is narrower, did it become so in reality (meaning it is not anymore usable by large vehicles like quads, cars, etc...) or are you assuming that the way is shown on the map like a path because of its present colour closer to the dotted pink?