But most of the pushback I've seen to AI in policy is so over-fit to current AI that it would be trivial to work around it. You can argue that we'd be letting perfect be the enemy of good, but I think we'd be making policies that will be out of date by the time they even make it into law, and that we'll never make any progress at all.
That said, I'm all for being proven wrong. The US tends to write highly specific legislation so I'm sure it'll try a few of these. The EU tends to write much more vague legislation specifically for this reason. We'll see how they end up working.