Really wonder if the clone stuff was planned from the beginning. The action and emotional themes fir that arc were top-notch, but Suga making clones, Hanto finding out about said clones and Shouma obtaining Blizzard were really rushed, you can chalk that last one to toy shilling but the rest just make this whole deal very confusing, specially because clones stopped being a thing and it would have been easy to write Nyelv having been the one to create the Bitters so that we would have started with Granute Bitters from the get-go.
At least now we know why did the Stomachs suddenly stop appearing during the arc.