I see it as part of the great outdoors, but I'm not sure if it would benefit the general public community.
I wouldn't see it as a problem, along with other things like Bungee Jumping, etc.
To play devil's advocate here, though, what qualifies skydiving as an outdoor activity (aside from the very obvious fact that it happens - though briefly - in the outdoors (air))
Yes its a slippery slope, but it seems skydiving particularly leans into the "driving a semi through the wildlands" end of things, being that it is wholly dependent upon an airplane.
Though, para-sailing / hang-gliding might fit...