That might be what you meant to write, but it’s not what you wrote. As written, it implies that you think the dance was intended to be a middle finger to the Crips.
Read it again: “It would be surprising if Serena’s dance today… wasn’t an effective and private middle finger to the gang that took her sister.”
That means that if it wasn’t an effective and private middle finger, then you’d be surprised.
I have clarified the language a bit. But because I don’t think she’d do it casually, I DO believe it was a middle finger to the gang. We may just disagree on that, regardless thank you for your comment.