That is normal for a new contributor. You can't reasonably expect knowledge of all the conventions of the project. There has to be effort to produce something good and not overload the maintainers, I agree, but missing such a detail is not a sign that is not happening here.

Every hobby at some point turns into an exclusive, invitation-only club in order to maintain the quality of each individual's contribution, but then old members start to literally die and they're left wondering why the hobby died too. I feel like most people don't understand that any organization that wants to grow needs to sacrifice quality in order to attract new members.