The linked post is more a story of someone not understanding what they're deploying. If they had found a random blog post about spot instances, they likely would have made the same mistake.
In this case, the LLM suggested a potentially reasonable approach and the author screwed themselves by not looking into what they were trading off for lower costs.
In this case, the LLM suggested a potentially reasonable approach and the author screwed themselves by not looking into what they were trading off for lower costs.