Three years ago, when The Baltimore Banner was considering taking me on as a freelance copy editor, the editors sent me a series of articles to edit. The articles were in Google Docs, and I made edits as suggestions which the editors could keep or reject. They kept them, and, seeing that they could trust me, they shifted me to the regular editing system.
Since then, I've corrected lapses in grammar and usage, fixed typos, changed a word to one more precise or appropriate, untangled syntax, tightened wordiness, and redressed factual errors. Of course, when I identify substantive issues, I address them with the editors or writers. But if there have been complaints about my routine edits, I have not heard any.
My edits are suggestions. You would be a fool to ignore some of them, but it is your text as the writer, or your text as the publication, and you have the discretion to overrule me. All edits are judgments and thus inherently prescriptive--I tell you should do this. Because judgments can be arbitrary and misguided, the best editorial prescriptivism is tempered with descriptivism.
My purpose--keep this in mind, please--is to assist you, the writer, in achieving your purpose, not to demonstrate my superiority (though, dammit, if you didn't think that I knew more about some things than you do, why did you hire me?). So when I offer my expertise and experience to suggest how your text might work better, please pay attention.