Right. Just like Liar Noland had no relevance to anything the Strawhats were doing in Skypia.
Until you get half-way through the arc and then, oh wait, it was relevant all along!
We'll eventually find out the statue guy was once the king or something, and that Donflamingo made everyone forget him somehow when he took over or something and after Luffy beats down Flamingo, the girl(who, yeah, is probably his daughter/grandaughter) will be the kingdom's next ruler.