For what it's worth, non-companion SGR could still be plenty more than 'just throwaway flirts'.
Taking the lady smuggler as an example since she gets my favourite NPC romances, and using a spoiler tag because vague smuggler spoilers:
Anyway! Point is, if Makeb's SGR interactions match up to some of the 'better' non-companion romances in-game, they might not be so bad. I've no idea if they will! But I'm hoping...
Really, what I want is all of the romanceable companions available for either gender (surely they can't be oblivious to the fact that, given NO SGR romance options to date, a lot of us have inevitably ended up wanting our characters to romance the companions they've already formed relationships with?) But whatever, for now my point is: Makeb's SGRs MIGHT be more than just a flirt option or two. They might be nice mini romance stories. Might.