Why? This is why. They have a lot of real contributors in the 20-25 point range, as well as solid cheaper stuff. That's great for 4-5 ship lists. Rebel lists of this type are almost always stripped down mid-low level pilots. Imperials will usually be a centerpiece + a some TIEs fighters. Scum have a lot of cheap pilots with a wide variety of upgrade options. Scum can have 4-5 pilots, with a few upgrades to specialize. They won't necessarily be high PS, but a lot of them can be named, maybe with an EPT and some tricks up their sleeve. That's not something the starter factions can do very well. It's neat because it's a different sort of squad than we've seen previously, and it feels right given the in universe background of the faction.