Well, Ben Solo is technically also a Skywalker so it depends on how you see it.
I agree with that assumption but look what they did with him; he’s a buffoon. He’s a completely incompetent and nonthreatening villain. He continuously gets beaten by a random person with no training. He then proceeds to yell and sulk about everything. He’s like Prince Zuko; only less interesting in every conceivable way. Then, in true Sequel fashion, they kill him because they don’t know what to do with him. You don’t kill off your characters for no reason or just because you can, that’s film making 101; just ask Kevin Smith.