Everything you say is WHY this is one of the series greatest episodes. Because it's full of issues and challenges us on the very Trek assumptions of non-interference. We've had the prime directive and respect for other ways of doing things shoved up our noses since forever and it's good, very very good to see what this can actually mean for individuals and cultures. In this case both suffered from interference and yet we can't bring ourselves to not sympathize with the interference.
I like seeing how incredibly complicated inter species contact really is, not just silly things like the Tak Tak
but the real horrors and dilemmas of completely different cultures and physiologies and people. Too often in Trek the Feds save the day through pious speeches, or they walk away and pat themselves on the back for doing so, either way everyone wins. This time no one won. No one. And that was just a whole lot more interesting.