Seems intuitively sound; a larger model would have the ability to differentiate among a larger variety of concepts, which translates to a larger vocabulary and greater ability to use expressive tools such as imagery, metaphor etc etc.

I could go on, but brevity is virtuous.

It makes sense that flowery language is more decorative than functional, but I wonder how much nuance can help shape reckoning, reasoning, and rendering -- if at all.

Maybe RFC terms are all that's needed: https://datatracker.ietf.org/doc/html/rfc2119