Earlier quoted context omitted.
They have a strong argument that the options deprived them of real salary that they would have earned elsewhere. It will be interesting though. The reality though is they just lost every bit of talent they ever gained. The good talent is already in talks with other organizations I can guarantee you, I personally would be looking for an exit and no one I mean no one worth their salt is going to sign up with them now.
" ... and no one I mean no one worth their salt is going to sign up with them now." I think this is probably a bit extreme (I realize you may be employing hyperbole for effect but still) Zynga is a considered a "hot" IPO candidate and as such you will find folks who recognize that not everyone is a super star. Some talent might be more attracted to Zynga because they 'deal with the dead wood' in a proactive way. And…
Would you really classify this as "dealing with the dead wood?" If they were "dealing with the dead wood", I'd expect they would just fire them for being dead wood in the first place and get their unvested options back as a side-effect.
Trying to keep the dead wood employed, but scaring them into effectively renegotiating their contracts isn't the sort of "dealing with" that very many people are going to look upon favorably.