The point that people are trying to make is that if you are busy taking care of a baby at home you are not working, or at least not working at the same level of capacity or in the same fashion as as you would if you were not looking after a baby... And if you're not working when you're at home, you're not working from home. You're just home. Most countries in the world would call that parental leave.

Is it possible that we can change workplace expectations to remove synchronous communication & work in such a way that these things aren't roadblocks? Probably, and I would argue that we should.

Is that the current way of the world at the vast majority of employers? Not even nearly.