I see Ego Death as the ending of a certain way of life. I think it’s more akin to the dying of a particular form of government than to an actual political assassination.
Every major transition or growth in life involves the loss, the ending, or the dying of a particular dream of who we believed ourselves to be. There’s always a kind of grief and longing involved in such transitions.
But your ego is your illusory sense of being a separate, independent entity. It’s a wonderful, important illusion. Recognizing that it’s an illusion dies not kill the illusion. It simply demotes it somewhat.