I’m not following you?
I was just pointing out that there are more than 15,000 game engines already being developed by individuals - so it is far from impossible to take a fork of an existing engine and maintain it.
I do understand how difficult it would be - but far far easier to continue development of an existing engine (i.e. cocos) than to develop a new one…
I wasn’t actually suggesting that those individuals should maintain a new fork - but that they were (pretty much) sole developers of Cocos at one time - so it is demonstrably possible for individuals to develop and maintain a game engine.