What is this supposed to prove? The question isn’t particular novel. There are decades of speculative terraforming discussions on the internet that you can search via Google, especially after the Martian book and movie.
I get replies like this all the time and I am starting to conclude that most of the people arguing that LLMs are intelligent/reasoning are either completely clueless about what those words mean or are arguing in bad faith.
It was supposed to prove nothing. I am not an expert on Mars and on a forum full of engineers, I expected someone more knowledgeable to start taking the answer apart systematically: this is truth, this is hallucination, this may be truth or not, but it is stated too optimistically.
I can see one thing. Mars is indeed further from the Sun than the Earth, but the light on the surface is probably still comparable to a slightly cloudy day on Earth, and plants grow just fine in slightly cloudy climates.