The current popular understanding of work life balance (or lack thereof) is almost always about work consuming an unhealthy/unbalanced amount of time, often leaving little time for life. Job satisfaction and work life balance are often linked, but distinct.
I think the thing others are pointing out is that regardless of what he clarifies in the post itself, the title does not match the content.
The issue is that when you don't feel like you're achieving things at work, it's stressful.
At the end of a day when you worked on some task for a solid 8 hours, it's easy to unwind - work is done, work was accomplished, you know what you're doing the next day.
At the end of a day when you spent the whole day trying to find out what you should be doing, didn't find anything and will resume that the next day...you can't unwind. Were you doing the right thing? Maybe there was someone else you should've contacted? What if you don't find it tomorrow? Is the organization broken? Should you try to fix it? (No) - there's a lot that you can't help but think about it.
I actually don't think the title is confusing. It makes perfect sense. I wrote elsewhere on this thread that the author basically chose to tilt the balance towards work because the other side, life, wasn't working out.
I think the thing others are pointing out is that regardless of what he clarifies in the post itself, the title does not match the content.
It’s a confusing title for what comes after it.