Q is a master at avoiding WARN notice; they will use PIP or voluntary packages to avoid WARN; they just don't want public official layoffs news. They have used this process for decades.
This is what I have noticed in my many years with Qualcomm. They will do everything in their power to avoid WARN, even if it means laying people off slower than they'd like. However, while it does wonders for avoiding bad press, it's creating an atmosphere where everybody feels like they have an axe hanging over their heads all the time. It's affecting morale to the point that I am positive will affect the company adversely sooner or later.