Part of me agrees with him. Unreal has a lot of issues to overcome to be used in a serious production environment. You can’t be guessing what works and what doesn’t and as far as I’m concerned lightmaps are a BIG problem. We really need to be able to find solutions to “little” problems quickly and right now we have big problems - not good.
What’s going to happen when your client has a model built already and they want it done quickly but the model isn’t built suitable for lightmaps? You’re not going to be able to make a new one.