It's just something you'll have to play. I own every Battlefield game from 1942, 2, 2142, Bad Company 2, 3, 4, etc. (Hardline wasn't done by DICE) and Star Wars Battlefront is definitely different. It's just something you'll have to play, but it feels a lot like a Battlefront game (with much better FPS controls of course). My only criticism would be of the tokens you have to collect to use vehicles, special weapons, and heroes as well as controls for vehicles are a bit wonky and simplistic.
I didn't find space battles in Battlefront 2 to be particularly that compelling. What Battlefront 3 was doing would have been amazing, but Lucasarts scrapped that game. DICE is clearly just trying to build a solid foundation with the game. I'm sure their "premium membership" will offer more planets and more features as is their general trend these days.
I definitely understand your frustration. EA has done some terrible things in the past and Ubisoft has as well. If not for EA though, BioWare would not have been able to create Dragon Age Origins, Dragon Age Inquisition, and Mass Effect 2 (I would add Mass Effect 3 but I know that game is divisive to some). Dead Space (even if 3 was disappointing) would not exist. EA has a lot of great properties and while some don't come out well, many do, especially in more recent times.
Ubisoft definitely treats their PC fan base poorly. I loved Watch_Dogs, but the PC port was trash. Most of the Assassin's Creed PC ports have been trash with the exception of AC IV: BF. Far Cry has been relatively solid all along on PC though. It's easier for me to hate on Activision considering what they did to Call of Duty. I'm also not a fan of Destiny and what Bungie turned that game into.
Either way, everybody has their preferences.