Everyone is not getting the same results. This is evident in the wide reporting in usefulness. Some people are producing production code while others claim they can't get the AI to to even basic things without error.
Something is def different. If we then look to human history and tool usage, never has there been a tool that is equally wielded by all members of the species. It's not magic, it's a tool. You know two plumbers can produce very different outcomes with the same tools, why do people expect developers with coding agent tools to exhibit different human-tool outcomes?