User blog comment:Fintin/Where is it going?/@comment-34981281-20120723060156/@comment-4899461-20120723143021

Kid wasn't meeting with Mom, all the characters at the end of 674 were in various locations. Plus, Kid destroyed several of Mom's ships at the end of the FI arc.

You could still be right about some of the other Supernovas teaming up. If Luffy and Law did it, I'm sure the others can too.