Well, I know, but I guess I don't get any points for that?
Without giving too much away, I will offer these points:
Lamm serves mainly as shared background for the PCs, plus his possession of the Queen's brooch leads into the next part of the adventure, plus it serves to introduce Zellara and the Harrow deck.
In the Dead Warrens, you were searching for the parts of the dead Shoanti, not hunting Rolth. So the goal was achieved, even if elements were left unresolved...
As for the last three, they are linked by the plague - Brienna is a sort of harbinger of what comes next, in shutting down Lavenders the PCs have prevented deaths from people using a fake cure and as for this part, well the initial aim was to stop dumping of bodies in Racker's Alley (to stop further spread of the disease). Make of the presence of vampire spawn what you will.
With Edge of Anarchy particularly, some sections are designed to introduce important NPCs, some locations of Korvosa, some aspects of Korvosan life (often all three). Maybe one or two are only tangentially linked to the main plot, and there is scope for players to have a fair bit of free rein in what leads they follow - I guess this probabl;y works better in tabletop where it isn't so long between each section.
As the AP progresses, though, sub-plots and red herrings are trimmed away leaving a clearly defined objective for at least the last three installments, if not sooner.