I think any thing with a story connected to it including Iokath should have a solo mode Just like the Revan fight in Yavin 4. By only making it a operation it's a slap in the face to solo players that would like to see the end of the story. I will never see the end of Iokath cause pug groups are toxic, By offering several different options it includes every play style and still enables those that want to group to group. I would expect solo content to have lesser drops because group content should have the better drops which would still get people to group for those drops and still allow solo players to still see the story. The stories in this game are the reason I play this game I enjoy them.