For a large class of cases — though not for all — in
which we employ the word meaning it can be explained
thus: the meaning of a word is its use in the language.
---Ludwig Wittgenstein
Your ellipsis suggests to are disagreeing with the original comment, else what you wrote is just a truism. The point of the original comment was that it was authorized by default as intended by design, and thus not a "hack."
Yup. Sending a print-job to an open printing port isn't special and IMHO doesn't rise to be anything remotely close to "Hacking" or "Hacked". Everything is essentially working as designed, but just poorly implemented. It's similar to how DDoS isn't "Hacking".