It is very rare that an aircraft falls out of the sky for any reason other than human stupidity. For decades, aircraft engineering has been well understood: the conditions for safe flight are known, staying in them is straightforward, and only very rarely does following the rules end badly. New technology has very little to do with this.

The thing is that it's easy to make stupid mistakes operating and maintaining an aircraft, and unlike many other areas of modern life, there aren't training wheels to make it idiot proof.

In the 1950s, test pilots were dying approximately once per week [1].

[1] http://en.wikipedia.org/wiki/Test_pilot

There's a world of difference between the flying done by a test pilot, who's intentionally pushing the plane to its limits, and your average recreational pilot.