Maybe I'm assuming levels of high functioning and healthy relationships that are unwarranted, but I read this article totally differently. You're misunderstand

Maybe I'm assuming levels of high functioning and healthy relationships that are unwarranted, but I read this article totally differently. You're misunderstanding leadership roles, where there's very little 'work-life separation', only 'work-life balance'. You have immense freedom on your calendar, but you also frequently think about work when at home and understand that work can call you back at any hour. Depending on the type of org, you're reasonably likely to spend weekend time at meals or other activities with your coworkers, often with wives and kids along for the ride. Your coworkers are broadly agreeable but, if you had a serious personality clash, you probably wouldn't stick around for that long because such a living situation would become untenable. In this context (and the remote work situation), his house is presumably a nice place for hosting, and 'come to my house to work on it' is the good-boss version of, 'well unfuck yourself and get back to me in a week with an answer, and it better be good.' It's inviting collaboration and focused time, and the CEO's responsible, agreeable coworker (author of the article) accepted that generous offer and made use of it.