I'm not an architect and don't live in an earthquake zone, but I was under the impression that wooden homes flex in earthquakes and if and when they do fall on you, do less damage than concrete homes which are stiff up until a point and then crack and fall.

So the human surviving may come at the cost of more houses collapsing.

Can personally confirm. Wooden houses do flex and often survive unscathed. The only major damage is usually due to any masonry attached to the house (see: chimney) or the house moving off of the foundation (see: before ties were in the building code).