Earlier quoted context omitted.
This depends on the grader and the context. Outside of an academic setting, sometimes being close to the right answer is better than nothing, and sometimes it is much worse. You can expect a human to understand which contexts require absolute precision and which do not, but that seems like a stretch for an LLM.
LLMs being confidently incorrect until they are challenged is a bad trait. At least they have a system prompt to tell them to be polite about it. Most people learn to avoid that person that is wrong/has bad judgment and is arrogant about it.
Not only do LLMs not know some things, they don't know that they don't know because of a lack of true reasoning ability, so they inevitably end up like Peter Zeihan, confidently spouting nonsense