I wouldn’t read too much into stockfish beating Leela Chess Zero. My calculator beats GPT-4 in matrix multiplication, doesn’t mean we need to do what my calculator does in GPT-4 to make it smarter. Stockfish evaluates 70 million moves per second (or something in that ballpark). Chess is not such a complicated game that you aren’t guaranteed to find the best move when you evaluate 70 million moves. It’s why when there was an argument whether alpha zero really beat stockfish convincingly in Google’s PR Stunt, a notable chess master quipped “Even god would not be able to beat stockfish this frequently.” , similarly god with all this magical powers would not beat my calculator at multiplication. It says more about the task than about the nature of intelligence.
People vastly underestimate god. Players aren't just trying not to blunder, they're trying to steer towards advantageous positions. Stockfish could play perfectly against itself every move 100 games in a row, in the classical sense of perfectly, as not in any move blundering the draw, and still be reliably exploited by an oracle.