I like how it's bringing up a thing that I didn't even know was a thing from like 15 years ago. That flashback panel about Sanji being from North Blue was crazy. I guess the "only alive" thing from more recent was supposed to be a refresh hint hint that there's something going on.
But yeah, now we've got momentum and can see where the story goes since there isn't much to do on Zou for the crew. Time to crash a yonkou party & save a nakama! I am ok with this. Capone's power is interesting. Wonder is there's anyway to avoid getting sucked into his castle, but you know he'll get defeated by Luffy or someone wrecking him from the inside out.
PS. Sanji is so cool he gets TWO backstories