The success in Go was very much not dumb search. Where dumb search had failed to achieve the level of even a very weak player, the neural net's "intuition" about good moves without any search was already very strong. Only the combination was superhuman, and that was anything but the dumb search that had been tried before.
Today's announcement is also not about proving Lean theorems by "dumb search". The success is about search + neural networks.
You're attacking critics for criticizing the solution that has failed, while confusing it for the solution that works to this day.
> My point is that you're attacking a position that no real critic holds
I'm not so sure. I wrote my comment after seeing quite a few comments on other threads here that read like fancy versions of "this is just brute-force search over cleverly pruned trees." Search the other threads here, and you'll see what I mean.
Today's announcement is also not about proving Lean theorems by "dumb search". The success is about search + neural networks.
You're attacking critics for criticizing the solution that has failed, while confusing it for the solution that works to this day.