No, SB, it is not semantics.
I said it was semantics because the terms were being used interchangeably. I agree, they are different.
There are other forms of writing that have nothing to do with telling a story, at least not fiction which is what we discuss here.
You can tell a story verbally as well, like sitting around the campfire. That's also storytelling. I don't think a journalist writing a news article is storytelling. Yes, he's telling a story, but it's not storytelling as in fiction.
Most of my discussions have been on written storytelling for fiction. The actual rules of writing, of course, come up. If I were concentrating on verbal storytelling, I guess I'd be interested in tone of voice, pauses, speed of speech, even eye contact. But I have to communicate with the reader through the written word so punctuation, spelling, and grammar are important. Knowing when you can break them is also important, but you have to know them first.
When we had the TPA scoring, "technical" for me was much more than spelling, grammar, and punctuation. It also included "how" the story was told. That's what the craft of writing fiction is all about. When not done well, that's when I get bored. It could have a good plot and characters I like, and perfect grammar and spelling, but if it bores me it has technical flaws.
Spelling, punctuation, and grammar rarely change over the years. The techniques for writing fiction do.
Jane Austen speaking directly to the reader was liked backed then. It would be weird today (not that a good author can't pull it off). Third-person omniscient was very common in the past. Today's genre fiction is rarely omniscient (it is, but not as much as 3rd-limited). Telling the story was very common in the past, especially in omniscient. Readers back then loved to read great prose with adjectives and adverbs while sitting under the shade of a tree. Today they want to be drawn into the story and characters, not the writing itself.
My wife loved the classics, having gotten a masters in English Literature and Creative Writing. A while ago, she decided to read "Madam Bovary" again. She couldn't get through it. Said the writing was stilted. This is a novel she loved back then. Writing fiction (authoring) has changed and readers have changed with it.