Really doubt it's fake. A few years ago I got a random text from an acquaintance that said something out of context. I responded and she replied she had no clue what I was talking about.

After googling it turned out that there had been some kind of glitch where select text messages from almost a year prior were "sent again" by carriers. Affecting very few people, but apparently enough to make industry news and of course I had been effected. Sure enough it was a message I had previously received that (in context) made perfect sense.

So I believe that kind of stuff happens. Probably as simple as some backend data engineer running the wrong script.