The episode was so politically incorrect. Spock's remarks. Rand had no female counsellor. Everyone was more concerned about Kirk rather than Rand (even before they knew about the split). Its not even like they said to her we'll assign you a guard until this is sorted. Nope the captain attacked her in front of witnesses and she was just told to go back to her cabin or something. And then the guy was free to accost her later.
They even used animals for experiments.
However this is one of the classic episodes. One of those best remembered.
Sure it had some problems but overall its good enough to overcome these to make it one of the best TOS episodes IMO.
Yes and I even liked the unicorn poodle dog.