Might actually be worth enduring the inhospitable work culture for returns of this magnitude on RSUs.
Sigh. :/
edit:
on the other hand with stock increases they won't give any raises. So guess it depends if you want a big chunk of money every so often or more money every payday.
Probably still worthwhile when the $200k initial grant turns out to be worth 2-3X more after 4 years.
edit: typo
Turns into a pretty big win for them. They get to keep a lot of stock from people who quit after a couple years, plus they can justify not giving you raises after year 2 because hey you are making enough already (with stock they already allocated to give you).