It's especially manageable if both parents are WFH.
Unless you and I have very different types of meetings, the ones I have are usually short and focused and I would be very annoyed if someone was constantly interrupted or distracted (just like I would be if someone is constantly checking their phone).
The vast majority of meetings are useless and unproductive, and if half the people on the call are muted the entire time nobody would ever notice.
I've worked with employees distracted by kids. Distracted by substance abuse. Distracted by mental illness. Distracted by video games, TV, something on their phone, or even just a basic disinterest in the job.
When we talk about the job market as a whole -- such as in the article above -- it doesn't help to focus on a hyper-selective section of capable, skilled software engineers. The vast majority of workers are in a much messier, less efficient and effective environment.
Nobody would even think to say "I hate when our meetings get interrupted because Suzy has insert medical condition here and has to go off-camera for a few minutes".
I would react similarly if somebody was playing a video game during a meeting.