The time lost estimates here are comically implausible--if Apple bugs were wasting 32m person-years per year, with around 1.5b Apple product users total, this would imply that the average Apple product user loses 32m/1.5b ~= 2% of their life, or about 11 16-hour days, to Apple bugs. If that were happening to you you'd, uh, notice :)

“The bugs are real. The math is not. All estimates are made up. Your frustration, however, is valid.”

I’m pretty sure it’s way less than 2%, but I definitely notice running into the same bugs many times.