here’s what Merriam-Webster has to say about it: Most usage commentators consider hone in to be a mistake for home in. The use may have arisen from home in by the weakening of the \m\ sound to \n\ or it may have developed simply because of the influence of hone, with perhaps an underlying sense that "honing" figuratively involves a narrowing or sharpening of focus. Whatever the explanation of its origins, it has established itself in American English and has begun to make a few inroads into British English as well. Even so, your use of it especially in writing is likely to be called a mistake. Home in or in figurative use zero in is an easy alternative tl,dr: I could care less what amandanat thinks is correct or proper
The tweet is correct but also pedantic, as “hone in” has entered into common usage to such a degree that it is included in the dictionary