I don't think it's the case for the parent but the "golden handcuffs" of RSUs+bonus as a major part of total comp is a pretty real problem. I used to think the very idea of "golden handcuffs" was ridiculous but by the time you realize the depth of the mistake you've made (2-3 months) you realize that you just have to fake it for a few more review cycles and then you get leave with an extra $100k in your pocket.

It helps that places that are awful also usually can't imagine that you would want to leave. Good places, ironically, worry a lot more about employee satisfaction. Bad places typically believe that everyone is really worried that they might not get promoted/have a long career at company XYZ so are very weak at spotting employees that have checkedout. The stick they wave is usually "you won't get promoted next year if you don't play the game!"

Of course this depends a lot on how much energy the job drains from you, but if you can still learn some stuff during the day and don't feel drained when you go home, a year is not such a bad sentence to serve for a nice bump to your savings... just don't make a career out of it.

The reason the market is so hot is precisely because so many shops are like this. If they were better managed then they could get away with fewer technical resources.

It sounds like they stayed there for about a year and had to move cities, so apparently the market in the area wasn't too hot for this to work. There are probably other people who stay longer, especially if they're not willing to move cities.