To me, this may signal an ominous culture shift. I don't work for Google or Facebook, and don't expect to. (Not sour grapes, just reality). But if a return to a more draconian culture becomes popular with investors, it could eventually trickle down to my little hamlet. Not something I look forward to.
Draconian culture is an environment that spurs tech innovation by new entrants. If anything, it might cause a mass migration of employees from those outfits into great new companies.