I'm kind of in the same boat about the captain, but I am very much reserving to see how it plays out.
This has been my line of thinking: we've seen writers going out of their way to link many other characters to past characters. Heck, a lot of less-than-canon stories suggest Riker is related to Kirk.
After a fashion though, its been so very rare where someone related to the bad guy becomes the good guy; it's certainly never happened in Trek (unless you count the retcon where Data is involved).
At the very least, I find the choice of the Captain's linage iffy but potentially really compelling. It almost carries a Blade or Son of Dracula type potential to it.