This reduces the "why" question to the more rational and mundane question of "how"?
Indeed. But I don't think the " how" is more rational than "why". Is more practical.
I tried to live with this mentality but at some point when you achieve a lot of " how" you finally starts to see the limits of this view and the "why" starts to grow in your mind.
But that's me. I for one cannot live ignoring my mind searching for "why". Is hard for me to accept there's people who doesn't care for "why".
Like a neutrino born in the heart of the Sun and takes millions of years to reach the surface and goes in a crazy angle towards the Earth and hits a DNA strand in the left testicle of a Drone Bee and it gives him a hereditary mutation and so on...
What we call random is a lot of frugal causes that we don't care to think about.
But the theory of information (related to Shannon's law I think) says that a very compressed information is indistinguishable from noise.
Things like this "how" makes me think about "why".