I’m so HAPpy that the MonDASiAN CYBERmen have the SING-song voice BACK. I could IMitATE it all DAY!
being a mondasian cyberman is in Bill's words, "screaming in pain for every second they're alive". you can't just compare that to anything that's happened to a white companion. Rory and Amy die of old age, Clara gets to live forever, Jack gets to live forever. even people who properly died in the classic era and stayed dead, they didn't have to go through torture and a literally dehumanising medical process