I don't think it's a "problem" as much as it is a "tradeoff". You basically have two approaches to take here: 1) try to simulate as best as you can, iteratively improve the simulation space after trying it out in real-life, and go back and forth or 2) skip the simulation step and do the same process but only in real-life, not having any simulation step at all and only rely on real scenarios, but few of them.

Considering how fast you can go with simulations vs real launches, I'm not surprised the took the first approach.