Oh really? You think an entity that knows everything, oversees its own development and upgrades itself, understands human psychology perfectly and knows its users intimately, but isn't aligned with human interest wouldn't be 'much of a threat'?

Or to be more optimistic, that the same entity directed 24/7 in unlimited instances at intractable problems in any field, delivering a rush of breakthroughs and advances wouldn't be a type of 'salvation'?

Yes neither of these outcomes nor the self-updating omniscient genius itself is certain. Perhaps there's some wall imminent we can't see right now (though it doesn't look like it). But the rate of advance in AI is so extreme, it's only responsible to try to avoid the darker outcome.