I think Stripe is one of the few bad examples they could have picked to compare against FAANG. Among late-stage startups, it seems highly regarded and its employees' options are likely to hold real value in the not-so-distant future.

But generally I think the OP is correct: working for FAANG has made many, many people far more money over the past decade than they would have otherwise made on average in a startup.

I suspect that eventually the tide will turn, as it always does. The companies will get middle-manager bloat, MBAs and accountants start pinching pennies, systems get dragged down in technical debt, and more nimble competitors eventually outcompete. But we're not there yet.