It's a big problem especially if you haven't met the people you're working with. It's easy so think one dimensionally about a person, I catch myself doing it all the time and I can't say I'm wise enough to always stop it dead in its tracks.
I can’t say I have ever experienced this problem after conversing with someone more than a handful of times.
Sure it applies to things like random people on social media and such, but after a mutual exchange or two you should be over it.
I have coworkers from past jobs who I've never met in person but still stay in touch with because we became friends when we worked together. That's not to say it's not an issue for you or for the author, but at least from the way they phrased it in the article, it's not at all apparent to me whether they're actually intending their complaints about remote work to be personal opinions or if they think they apply to everyone.