I like to think that the reason it's so noticable is that Claude has recognized some important semantics that we ourselves lack a good word for or at least under-appreciate. What term is used in English (or other languages) with the same meaning as claude's "load-bearing"? operative? key? critical? decisive? The honest conclusion is that none of those are as good as "load-bearing". And yet the concept being referred…
You're serious? Operative, key, and critical are all more correct to me in this context.
"operative" is a bit better, but I think of it as referring to grammatical interactions, i.e. interactions at the level of language mechanics rather than semantics.