If you don't have those personal issues, then yeah, you'd find it hard to relate to.
Rather than having nothing positive, I think it's having negatives that they can't otherwise control.
Not OP, but this critique revolves mostly around semantics and I don't find it useful or accurate. If, big if, they had something positive to look up to outside of work, they'd be less inclined to put all their energy into work. That'd be the case even with multiple negatives they couldn't control. In other words, it's the total lack of any and all upside outside of work rather than the existence of downsides that makes people feel powerless and depressed.
Back when I had a lot of emotionally turbulent events happening in my life, I was in the same boat as the parent comment you are replying to. Things in life going extremely sideways and leaving me heartbroken/depressed were what pushed me to that same kind of workaholism described above. Every single significant side project I wrote was during some awful-feeling events happening in my life. Those were also the times when I spent the least time doing "fun" things (e.g., videogames), because I just didn't feel like it.
That drive for me had nothing to do with the actual desire to make money or have career advancement, it was just a mirage. In fact, I would say I have more of the actual desire to make more money and advance in career when I am in "good times", but the drive isn't quite there. But when the "bad times" come, I have no actual desire for money/career advancement. I do however get that insane intrinsic drive to just get away from all the "bad things" in life at that time by diving deep into working/studying/etc. It wasn't about money, it was about doing something productive, because most of that work (at least for me) was just side projects that I didn't get paid a dime for, and neither was I expecting or cared to get paid for it.
So I think escapist workaholism needn't necessarily be for the boss man. Anything will do the job as long as it's sufficiently consuming.
I worked for other people during internships for a few years and after college for about 5 years before hitting a homerun. I've never done anything for a decade and would imagine being unfulfilled by that kind of conscription. I'm not the kind of person content with just a job, and I always loathed and scoffed at the surrogate "family" that some corporate environment and startup founders try to create.