I think I see the point you are trying to make. The knowledge & understanding of members of the public does need to be considered. It is a very important element.

However, I feel that someone who is potentially very influential in shaping policy around an area should have some background knowledge of it. If not right away, at least the capacity to pick it up.

Here she appears to demonstrate a complete lack of understanding and an apparent apathy regarding the subject matter.

When the home secretary shows a lack of understanding in UK immigration procedure I shudder but if I saw a transcript of her discussing passport control saying "when you start talking about bio-metric passports, my brain goes bzzzz"... well, I'd just want to give here a slap... or 7.

*Note for the Met Police: This was not a real threat to slap a Minister. Please ignore*