It could be a legitimate typo, thanks to rather bizarre “autocorrect” functions. I have had “autocorrect” turn my sentences into gibberish, when I had typed everything correctly. Once, I typed “fake news” and the device turned it into “cake news.” Since that could have been a typo, I checked by typing “fake news” again, and watched the “f” turn into a “c.” I have since figured out how to turn off autocorrect.
It does speak to the vanished art of proofreading.