Then again, that may just be a result of us knowing a lot about Science and Technology. I wonder if those who are experts in economics and those other fields The Economist supposedly covers with skill think the same things about it covers their area of expertise.

I wonder the same, but from people I trust and what I do know, it seems that they are better than pretty much anything else being published this days. Their Science and Tech section is clearly not better than alternatives, and in many ways much worse.