Oda has been running the Luffy is just like Roger imagery into the ground since chapter one. Shanks telling Rayleigh he met an 8 year old kid in East Blue who says the same stuff as Roger… They have the same smile, they are from the same place, they have the same middle name d dot. Now a young Roger looks like Luffy, almost identical... it follows.
However, Usopp disciplining anyone is awesome. Chopper busting Zoro's head is awesome. Zoro and Luffy planning to cut and gatling through the coating most awesome.
Dr. Vegapunk being true to his word although he works for the marines is THE BEST NEWS in this chapter.