Prolly.
But is that really any worse than an entire GALAXY full of people, yet everyone we've met so far (all 5 of them) are related somehow?
i:e: Luke is Leia's sister. Vader is Luke's dad. Vader made 3-PO. Fette made EVERYBODY. Blah, blah, blah...
I was okay with Vader being Luke's dad - that was surprising.
But then it was like George saw the reaction and was like "Everybody's related to everybody! That's what the kids want!"
So now we have an entire galaxy - a GALAXY! - and 12 key people are all related and 100,000millionbillion people just don't matter at all.
Yup.. that's good story telling [/sarcasm]
I don't get why everyone was so bent out of shape over that. I'll give you the C-3PO connection, but I always though that Leia being his sister was kind of the Force connecting people who needed to be together to fix everything.