Neil's comments certainly got me thinking on the subject of *how* much death there was on the series. Frankly, the thing that has always disturbed me is how many deaths happened wherever they went.
They came, they saw, and if they didn't kill, someone else did. In some cases, deaths of innocents were a direct consquence of their actions. In "Dawn of the Gods", for example, they caused the destruction of the Tharn's little world, but got themselves out only. What about all the other people who'd been imprisoned there? In Ultraworld, likewise, victims were being used as menials. Doubtless they could have been restored as Avon and Cally were, but there is no indication that the Liberator's crew worried about anyone exterior to their group. Despite the complaints that too little was done for Meeghat and her people at least the crew in that story did not create a deadly threat to them. Dog and Ultraworld give faceless deaths, but few scientists survived encounters with the rebels, even though the rebels were witnesses at best and indirect causes at worst. Ensor died as they tried to save him, and he'd have been no better off without their arrival. XK72 held a large number of researchers, killed, for the most part, with no knowlege of the presence of Blake and company, or Kayn's machinations.
The magnitude of deaths in the series does sort of make the final scene pale in comparison, when you let the glossed-over carnage sink in.