They keep telling us that never before has anyone produced a flight sim in such a short time. (couldn't fight the urge to say they still haven't) Anyway, there are probably a couple of a good reasons for that.
Never before had any developer inherited a load of assets they could utilise. But still they couldn't get the job done!
If the recipe for cake says bake for two hours, do you think it would be a pleasant cake if I bake mine for only one hour?
My point is, they should never have tried to push an IL-2 title out in two years, it's now been proven its not possible. And instead of fixing the missing or broken parts of their existing cake, I mean game, they're baking a new one.