Let me spoil it to you: The cloud is also not an actual cloud, it's just someone else's server.
It’s just a term that stuck, as did many other terms, let’s just move on.
Do you also get angry that a firewall isn’t a literal wall of fire?
Words also have more than one meaning. You're being pedantic for no reason.
> a method of providing backend services on an as-used basis
As opposed to renting a dedicated server or VPS instance