Lets not go down this road. This is like the guns don't kill people debate.
It's not healthy - and work life imbalance is usually driven by others, but sometimes not. And to fix it you need to figure out what the cause is.
Looking at yourself shouldn't take that long if your job is the problem, and if you are the problem well you should attack that. In my case working myself to the bone was not a healthy response to a bad breakup but admitting that took some time.
Granted some workplaces will ask more than others, but it's absolutely a two-sided deal.