KarmaFleet came originally from Brave Newbies, a newbie organization that was rediculously active at one point, but since has sort of tapered off. The mission seems to be pretty much the same as Brave: Train newbros, have fun, get blown up, and learn how to play. If they are anything like Brave was, they don't focus a lot on specifics, and tend towards more fleet engagement-type stuff. However, there are SIGs, which are groups of people that do similar activities together like wormholes, small-gang PvP, Blops, scouting, so on and so forth.
The problem with KarmaFleet is that their greatest strength as a newbie organization is their greatest weakness: that of being a member of the Swarm as a whole. Depending on which side of the fence you are on, that's either an amazing advantage, or a terrible life decision. Having been on both sides of the fence, it's a toss-up. There's a lot of things to say about Goons that's good, such as organization, safety, and knowing you've got a 900 pound gorilla at your back if you ever really need it. On the other hand, you're part of an organization that's pretty universally hated outside of the Imperium, it may be a negative point against you if you ever decide to leave Karmafleet(depending on who you ask), and the fact that you're in Goons means there's less potential targets. Also, it occasionally feels claustrophobic and a bit beauracratic inside KarmaFleet.
I don't know a ton about Wingspan, but their style of gameplay seems to revolve around small engagements, skirmishes and small-gang warfare, often in wormholes, primairly using bombers. Bombers are extremely easy to get into for a T2 ship, and a lot of skills you queue up for a well-fitted bomber will help immensely if you decide to do other things down the road.
The issue is that I don't see a lot else. I know they are doing some blopsing, but you're basically sticking yourself with a pretty specific type of play, and one that doesn't always translate well into other areas. It's a niche play, which... is fine, actually.