Not entirely sure what they meant but chatgpt and the likes have forced schools to stop relying on homework for grades and are instead shifting over to assignments done more as an mini exam, more work for the school, but you can't substitute your knowledge for chatgpt in such cases, you actually need to know to succeed.
People argue about the damage COVID lockdowns did to education, but surely we're staring down the barrel of a bigger problem where people can go through school without ever having to think or work for themselves.