alt Hacker NewsThis is true, though I believe savvy employees have leverage to ensure they participate in a larger share of that upside. As you can see from other comments, lots of people will just drag their heels and not give it a good-faith attempt, so it'll often average out in the way you predict.
Are you budgeting time to allow people to properly evaluate LLMs and possibly struggle with them? This is not the sort of new tool whose utility is universally immediately obvious to all builders and craftsmen out there. Are you willing to pay down the likely debt of some individual contributors never clicking with this, or being outright resentful to towards the technology or the mandates? There is a LOT of self-selecting bias from LLM proponents assuming everybody else is willing or able to travel the same path as them.