I think you're right with both points - most technology isn't designed for tech-savvy people like you and me, AND technology that tries to predict human intent

I think you're right with both points - most technology isn't designed for tech-savvy people like you and me, AND technology that tries to predict human intent is doomed to fail. When you want build a 'smart' system in the absence of true AI (which does not exist), the only real solution is to build a product for the majority, or support configuration for everyone. The latter seems pretty tough for a search engine. That being said, the advanced search features are just that, an attempt to give the 5% the control they need to do what they want. Whether it works or not is another story. It doesn't really excuse that the product fails you as a user, but at least it's a reasonable explanation (IMO). As I wrote this, I started thinking about plumbers/electricians going to a hardware store or interacting with electric/plumbing products designed for the general population. I'm sure they feel similar frustrations!