I don't think anything could have really helped. The problem was simply this:
The Space Hippies were meant to parallel the real hippies. The real hippies were driven by experimentation with narcotics and a collectivist theory that couldn't possibly survive long-term. No one knew that at the time, however.
Unfortunately, to really write about the peace movement in the late 1960s, one had to first understand it. One couldn't really understand it without being in it. One couldn't be in it and still produce a weekly TV show: the two activities are mutually exclusive. You were either dropping acid and waxing poetic about collectivism; or you were holding down a real job somewhere (like making a weekly TV show).
Casual viewers who knew about the peace movement from the nightly news didn't find the Space Hippies any more bizarrely inexplicable than the real ones. It wasn't until the movement petered out and we could look at it in historical context that it made sense to the outsiders.
But at the height of it, in 1968-69? Who knew what the
Summer of Love meant unless you were there?
Star Trek's writers and producers weren't there, so the best they could do was approximate the movement.
It's not a very good approximation, and that became clear very quickly. This is one of those instances where they should've left "
Joanna" intact and shot that episode rather than morphing it into something nobody really understood.
Dakota Smith