I think what makes this all frustrating is that FFG keep creating either expensive droids (M9) that aren't especially amazing, or attempts at thematic cards (Black One) that don't do enough, all the while continuing to give the Scum faction cheap and powerful cards (Zuckuss' card does the same type of thing as M9 but costs 1 point and has no restriction). The IG crew card is precisely the kind of card that the rebels need as a title. On top of that, you have cards that help swarms (eg, Swarm Leader) that are targeted towards imperial ships, where this type of design space would be much better suited to the rebels. It's almost ironic that the rebels have less synergy than the other factions, even when all the films show them communicating and working together. Then you have bounty hunters who are in competition with each other instead helping each other out...
I'm sure we'll see a new pack, hopefully with squadron leaders, by the summer next year.
I'm not sure what bounty hunters you are talking about but I have read many books and seen a lot of shows that prove they are more than willing to work together if the score is big enough.