Because they have just wasted their time and the opportunity to create something "worthy." And yes, some planes are far more worthy of mention in regards to WW2 aviation than others.
Sure. I also agree with the idea that, yes, we should have the 410 before the Bachem Natter. I'm envisioing a day, however, when we've got a more complete planeset. Then, perhaps, we could have some of these luxury items.