My opinion is that juniors need time in the saddle to develop good engineering judgement and taste.

Outsourcing critical thinking is seductive and a slippery slope. LLM lures juniors into feeling productive, and molds them into ineffectual middle managers to be readily replaced when there's a bad quarter.

Yes exactly. The mids of my previous team where submitting PRs that at first glance looked good, well documented and with a very clean and professional English.

As you started pulling the threads it was, usually, a mess of subtle bugs and over abstraction. But to them it was great, as it was llm generated and they (the mid devs) had no better judgement.