...every minor obstacle on a trail now has a herd path around it...
This is a clear-eyed observation. Same thing over here in the Adirondacks. This change has been developing for decades. Today's hiker population is different from the hiker population of 40 years ago. Most hikers now are focused on convenience. "If something get's in the way, [they] go 'round it."
Here's the deal: no one can change that. The hiker population is what it is. The problem is, hidebound "land managers" persistently refuse to see this change. And they insist on "managing" resources for the hiker population of 40 years ago. Of course this is living in an imaginary world, and the results are obvious.
Today, in the Adirondacks, well-meaning but completely blind trail crews pile brush in the "go around" paths, imagining that they will "force" hikers to go through the "problem" area, whatever the problem is. Of course this is a complete waste of time, and the piled brush is promptly removed the next busy weekend, or an even farther afield "go around" path is created. The time would be better spent fixing the "problem." Turnpike boxes for mud; intermediate steps for high steps and scrambles; boardwalks for bogs.
But you cannot sell that here, either. So called "land managers" are absolutely insistent on "managing" based on an imaginary world that may have existed 40 years ago. This is not management; it is delusion.