If we think about a company as an organism, then a knowledge management system is essentially the (collective) brain that keeps that organism alive and running.
And by the way, I don’t believe that the future of work will be fully remote work, but rather a blend of full and punctual remote together with office presence. This is why these tools could make sense for the majority of businesses and not only for remote only businesses.
Being human is not hard because you're doing it wrong, it's hard because you're doing it right. You will never change the fact that being human is hard, so you must change your idea that it was ever supposed to be easy