Why should I assume anything? We are what we are and we do what we can with what we have - imperfect as it is. Inactivity is way worse. By the way understanding all things (AI or whatever) is definitely not a requirement for the legislators. I'm sure you remember they have hordes of specialists in their staff and those will understand the aspects at hand to sketch recommendations.
It's not legislators, although I disagree with your assessment there. The people actually doing assessments and inspections of companies do not have much expertise at all. Even for far simpler technical tasks than assessing AI.
