So what were you all worried about? Dumpsters are incredibly easy to dive under. No plot contrivances whatsoever.
After big battles, you usually learn a lesson. The severity may depend on whether you won or lost. Regardless, you want to at least walk away from a fight with something to show for it. Or, in the case of “Now” and our Alexandria residents, learn things that you should have already been aware of in the first place.