I suspect you gotta be an average 29 year old quantum particle spin physicist to use this info.

This data is mostly used to test existing theory. Eventually we may find a discrepancy that suggests the Standard Model is missing something, though this seems unlikely in the near future as the model has accurately predicted pretty much everything we throw at it.

It's how science works best: you make your boat, then do everything in your power to sink it. The boats that stay afloat, like quantum chromodynamics, quantum field theory, and general relativity, are the ones that continue to work in ever-more difficult situations.

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For real? Ok, sure.

Measuring this more precisely let's people know better that reality works like equations predict. If we know there's a discrepancy, we can discover why and learn new science...which doesn't benefit Americans in 2023, but might be a piece of a puzzle that benefits Americans in 2073. Advances in the standard model paves the way for exotic technology that becomes commonplace decades later.

Maxwell published that electromagnetic propagation should happen back in something like 1865. These had zero applications in 1865, but by 1901, there was wireless communication across the Atlantic. Around 150 years later, you were typing this comment on a phone or computer that is a direct engineering application of Maxwell's equations, such as light coming out of your screen to read these words, sending data across the internet, and CPU/GPU/motherboard architecture.