Death is just a way to bench a character.
I just find Namor's whole family a funny example of comic book deaths.
You start with Namor, Namora, and Namorita. The Namora dies of poison.
Then Civil War and Agents of Atlas happens and Namora is alive and Namorita is dead.
And now Namorita is back (or rather an alternate dimension double of her is back) and Namor will be dead.
Wasn't Namora also married to Namor recently? She has to deal with losing her daughter and her husband. Sucks to be her.