Reminds me of the Suicide Booths from Futurama. https://futurama.fandom.com/wiki/Suicide_Booth
That's probably one of the main reasons why they called it "suicide capsule", even in english :)
Edit: I don't really get why this is downvoted ^^ The link goes to an article that was originaly written in German and only translated by the swiss television station SRF.
"Euthanasia" is not a neutral term in German, take a look at the wikipedia entry and how much of the page contains "NS", "Nationalsozialismus" or dates between 1939 and 1945: https://de.wikipedia.org/wiki/Euthanasie
It was used as a euphemism by the Nazis, and this still taints it. It has lost much of its original meaning because of this. If you say "Euthanasie" in German, even to someone from switzerland, there is a very high chance people think of it as "the killing of people that disabled, against their will". :/
There is a reason most people use "aktive Sterbehilfe" ("active help to die") instead of "Euthanasie", even though both things mean the same.