>Bans on tools have only ever delayed progress and caused misery.

It really depends on the "tool"; arguably a great many atrocious weapons are tools, yet it's hard for me to see nuclear disarmament as anything but progress. Technology is not neutral, it is informed by concerns and developments outside of its own instrumental purposes. In the same way that recent (last century or so) tools/technology have brought massive improvements to the lives of everyone, the same way they bring massive improvement is the way that other tools (or even the same ones) bring massive regression.

As for this particular technology, I don't know enough about it to comment - only to say that in general a variety of different concerns should be involved in its design and evaluation - from scientists to ethicists.