Still not watching, but...
The last Moclan episode was #7, with the Moclan who liked women.
The problem is there are not enough episodes per season to properly focus on the ensemble cast plus the universe. They've focused too much on Isaac and Bortus, and the rest of the cast doesn't get much love. Gordon and LaMarr almost may as well not be there. Ed and Kelly really don't do a whole lot either. They're also not delving into the setting like a typical Star Trek series would. Outside of the main cast aliens, only the Krill have gotten much focus.