I kind of wanted to see a short battle vs Seraphims too. But what makes you say Wano was rushed? Looks like it's the longest arc so far:
*No Ryuma Graveyard plot.
*Oda simply forgot about the Big Mom pirates.
*All the Zoro teasing got thrown into the garbage bin.
*Jack and Perospero went down in one fucking panel.
*Big Mom got killed in the same manner as Kaido,which is lazy writing imo.
and some many more examples of plot that were rushed.Oda dealt with the gifters in the most lazy way possible(O-tama).