"Callee vs Caller" confusion in /en/19/07.md

[heyradcode]

So this page mentions about "callee contract" that requests a transaction (or emits an event).
https://github.com/loomnetwork/cryptozombie-lessons/blob/master/en/19/07.md
To me, it really doesn't make sense to name it callee, because it's the one that requests (or calls) randomness.
Can you clarify why it is not named caller contract?
I'd be happy to open a PR for the amendment if you think it was a mistake.