That's not the point, if you actually went and read the thread. The point is that, like the vast majority of employers, approval by one's supervisor is needed to work at home and that not everybody will qualify.
Are you claiming that 100% of software engineers at Apple will be allowed to work at home? And that it is a unilateral decision by the employee with no input from management? If not, then you are supporting what I say.
And it's not just my experience. Again, if you went back and read the thread, literally everybody agrees except cmaier that working at home is contingent on your supervisor's approval.