Yeah I agree things will improve in the future.
As for the the example of compile times, I just used them to illustrate the turn around times for rebuilding a new version of the app, which is very important for us to test new versions of an App on actual devices. The importance of that rebuild speed is required regardless of which language or engine the app is created in. So in the case of UE4, what is it doing that is taking so long?, as it really shouldn’t take as long as it does. Which implies its doing way too much, which hopefully means there’s a way to tell it to do less, so it builds much faster?