That seems like a smart approach. It reverses the traditional model of "lecture in class, homework outside of class".
My own experience with flipped classrooms (which seems to be shared by quite a few people who have tried it out): they only work well if all students actually read/watch the materials beforehand. In small, advanced courses, intrinsic motivation may be sufficient - but in most cases you need some extrinsic coercion - such as a mandatory quiz about the materials or hand-written lecture notes that need to be shown at each in-person session.
With AI, some people don't watch the lectures but let ChatGPT give them a summary which they submit. Then these people poison your in-person session with their lack of knowledge and motivation.
If done more stringently (if you didn't watch the lecture, I'm not reteaching it), it maybe would've had a bigger impact, but I'm not sure.
Office hours remained king for serious Q and A for the class.
What about those students who don't have stable home environments? How are they supposed to find multiple hours a day to watch lectures?
How does this address the underlying issue of students off loading work? You've replaced homework with lectures, but haven't solved the problem of making sure the student is actually participating.
Logistically, this could only work if you shortened the school days, but then you would need to adjust the rest of society around that. Many parents structure their work days around their kids school schedules, and if kids need to go school later in the day, or get out earlier, that places a burden on the parents.
For secondary school, I do agree with you - homework load can be problematic for some students. But at the same time, my honors classes all came with hours of homework and I’m not sure I would have been as prepared for uni without it.