Why are they literal gods at making video games?
>Bloodborne
>Shadow of the Colossus
>Ninja Gaiden Black
How?!

They are good with formulaic stuff, when they figure out something that works, they will keep improving on it, until it turns into shit, but until it doesn't, it kinda works.
Look at the evolution of their TCG mechanics and that should be somewhat clear. Dragon Ball also illustrates that nicely.

Devs get to do their thing without corporate meddling? Just a guess.