Besides the obvious irony of criticizing a suspect LLM work and then asking another LLM to criticize it to prove it, your question was loaded:

"Explain why this paragraph is contrived and grammatically incorrect: [..]"

Current LLMs are trained to follow your leash.

I don't see any grammatical errors, just some possible missing punctuation. The arguments Gemini gives are just opinions about stylistic choices. Could you point out the specific grammar mistakes you see?

These are just grumpy posters, while I was not expecting the post to get all of this attention, its usually the ones who are reactive or trolling who respond here. They want to find so many mistakes just so they don't have to admit to themselves that they don't understand what the project is or how it works.

You've taken this ubiquitous phenomenon into account in the design I hope?

Our entire system is trained on LLMs, so yes LLMs are used to write summaries. Thanks for the feedback.

Now ask it why the paragraph is well written.