I love the engine but why is it so bare bones?

I don’t understand this argument, really;
How do you think we got from 4.0.0 up to 4.15.x so fast?!

We have a super community with hundreds of people contributing solutions and fixes every month over GitHub, I have never seen any game engine anywhere this collaborative with the community!
I don’t see people sharing like this since the early XNA heydays…