What an absurd take. If we use FLOPS as a crude measure, the Air would be comparable to the leading supercomputers of ~1999/2000. There's many reasons why that's a very poor comparison but ignoring the absolute insanity of the raw compute available in a pocketable, thin, battery-powered handheld that you can buy literally this week, is ridiculous. Modern smartphones are nothing short of sci-fi when compared to even recent living memory. We're simply used to them due to their sheer ubiquity.
The A19 GPU doesn't even have hardware support for FP64, which is the precision used for TOP500. No, it is not comparable to leading supercomputers of 1999/2000.