There's two big points to doing this even if people like you and me cannot immediately benefit from it.
1) Potential bulk builders buy a few PCBs to test how hard it would be.
2) Anyone who DOES have excellent soldering skills can get a Minimig NOW.
So personally, I think saying "I cannot see the point" is a little narrow minded. The thing wouldn't exist if Dennis had that attitude. Imagine if he had sat down and thought "hardly anyone can build them so why bother designing it in the first place?".
It all has to start somewhere and if nobody could be bothered to manufacture any PCBs there would be NO chance of anyone being able to buy pre-built versions EVER.