It appears this episode didn't resonate with those enamored by big explosions and the like, but I thought it hit the same frequency as the pilot and Morgan's crazed episode, which were the two better episodes of the series.
I think it is an interesting dichotomy where all life is precious (worth saving) but how can that be when some life is destined to destroy others? How can Morgan justify his actions and philosophy when it has directly led to the death of others? It's hard to understand as it's not necessarily a viewpoint I share, but it is intriguing. It follows that line, that has been touched on throughout the series, that separates animals and humans, civilization and anarchy, the undead and the living. Where is that line drawn? And if it has been crossed, can it be crossed from the other side? Can there be redemption? If a life can be saved, is it worth saving? To what end?
It's something we have seen throughout the series. Morgan was crazy and lost but found direction. Tara was on the side of the Governor but was given another chance. Eugene risks other people's lives for self preservation but has shown growth away from being a coward.
So given that, the placement of this episode is actually vital for us to understand the rest of Morgan's story line.