i don't imagine there will ever be a time when it will be unambiguously true, any more than a boss could ever really unambigously say their job is "manager who directs subordinates" vs "manager who fixes subordinates' mistakes".

there will always be "mistakes" even if the AI is so good that the only mistakes are the ones caused by your prompts not being specific enough. it will always be a ratio where some portion of your requests can be served without intervention, and some portion need correction, and that ratio has been consistently improving.