Apple is a weird outlier here. Do people consider working at Apple the same as working at a FANG? From my experience and talking with people in the field, it's not really the same league, neither in work-life balance, pay, benefits, etc.
you could make the argument that neither of them belong on the list, but I would disagree with that too
i would look at these things when deciding which companies should be on the list:
is TC for the position (on average) in the top 5%?
is the company considered to be a potential terminal/apex in one's tech career? as in you could work there until retirement (potentially an early one if you are making enough money)
for the employees who don't stay forever, do they typically go between other employers in the set when switching jobs? (google <-> fb is the main example i think about for this)
i want to include perceived prestige on this list too, but that seems way too difficult and subjective when it comes to quantifying it. one measurement would be how appealing your experience at a member of the set would make you to the rest of the industry as a candidate.
But like any huge company, "it depends".