Well, technically mRNA hijacks cellular function by introducing an outside genetic message. The “vaccine" was introduced in a hurry and we don’t know all the pitfalls/advantages of this technique (at the same confidence as compared to existing vaccines), but considered the past history of mRNA techniques (cancers, autoimmune problems) I’m going to wait and see. Especially since the justification for the emergency authorization was founded on a deliberately false narrative (“...there is no other treatment”). BTW, reverse transcription is a real thing, so never say never on that rewriting thing.
If you think about it, reliable and safe mRNA promises some real advancement in treating all sorts of conditions beyond current capabilities.
Adding a chapter to a book is a way of rewriting the book even if the text of the other chapters is left as it was.