Nope. It is actually true and (I thought) well known fact in industry. Idk if that was ever official statement or something that Epic employees usually tell you. If Epic does not need or use feature internally they don’t develop it. Unless you are very big 3rd party licensee.
It’s actually bit disappointing, since their internal projects rarely align with what the engine is mostly used for. It now happen thta Fortnite BR pushed engine in direction that it is used by lots of people but IDK if that was accident or planned because well “people make open world multiplayer games, and we need to test engine”.
Upside of the situation is that features which are used by Epic are actually well developed, tested and proved to work in real game development, not proved to work with theoretical engineering (like Unity).