I don't think you have to be paraplegic to have a condition that prevents you from enjoying an invigorating hike. If this gets more people who aren't in perfect health out and exercising, what an incredible win.
It lowers the barrier for entry, doesn't prevent effort
I love cycling. Even without electric assist I find using mechanical advantage invigorating.
No one is forcing an exoskeleton or ebike on you. Why can’t you be happy for the people whose mobility it improves? What have you lost by their gain?
There is also quite a lot in between “climb a mountain” and a “walk in the local park”.