Changing culture might have something to do with it. Post Clayton Moore, The Lone Ranger seemed to work best as an animated property (Format Films in the late 60s, Filmation in in 1980), but the next time it was produced as live action (Legend of the Lone Ranger, 1981), the film was a panned flop. One can argue that was due to the film simply being bad as a western, but in the years to follow, Silverado, Dances With Wolves and The Unforgiven were evidence the western was able to be successful on the big screen. I believe the LR himself was "aged out of the system" at a time (late 1970s/ early 1980s) when the big budget and/or well produced live action superhero film or TV (Superman the Movie or The Incredible Hulk, respectively) became the standard for fantastic characters on film, so anything else attempting to be bigger than life (like superheroes, though he is not one) was considered inferior--not fantastic enough. Jump to 2013, and we have another LR film, coming at time where some superhero productions are (once again) all the rage in fantasy, which only serves to show a TLR (like Legend of the Lone Ranger before it) to be a glaring opposite--something plain or boring. a guy wearing a mask, but he's not much else. ....and its a bad film (or so many are saying).