Hm, they have to fit them into Physics, Chemistry, Medicine, Literature, or Peace. I guess physics is the closest they can get without a gross missplacement? (Although you might be able to absue literature for LLMs?)
I think that you can grow mathematics through applied mathematics. It's something that grows the domain where Mathematics is useful, even though the maths themselves where known and somewhat well understood in a more abstract way.
Considering this, it feels odd not to allow a similar thing to happen on physics.
It's definitely not how "they" work. It's not like a committee choosing an achievement across all the fields and then trying to put it into one of the 5 buckets.
We have Turning Award, Fields Award and the other thousands of awards for achievements that can't be categorized as Physics/Biology/Economics/Chemistry.