Part of language is about whether or not there is an ability to infer what is being talked about without specifically naming it.
Because LLM's have existed longer than the current technology of "AI LLM's" we have to specify what we're talking about. Which is why we use the term we do the same way you would possibly use the term Xerox or Hoover or Scotch tape.
The difference is those terms I listed are a shorthand for other words that get the idea across without misinterpretation, but can easily be swapped for photocopy, vacuum, and cellophane tape.
The technical term given to Generative AI LLM's that differentiates it from the LLM's that came before it is in fact Generative AI LLM's and is shortened to Generative AI or Gen AI
When you use the term slop, that can be linguistically confusing because to a non-native English speaker or a farmer slop has a different connotation altogether.
This does not negate your argument, because I generally agree that we are attributing intelligence to this tech that it does not have and that this was an intentional choice by the Tech Bros who coined the term. I even agree that it adds further confusion because it's being used for medical tech that doesn't use an LLM at all.
But if we're going to change the name it needs to be a new term that represents what this tech actually is instead of using a more confusing/less specific slang that has other connotations.
Doctors don't call vaginas pussies.