>>9345720Because this is a franchise primarily fueled by the reliable, assorted ossified childhood nostalgia of various generations.
Which is occasionally interspersed with just enough risky semi-original new takes and reimaginings to hook in the next generation of current children. However the reception and monetary returns for that part is a lot more volatile, so mostly they fall back on recycling things they already know people like.
So it has always been, so it shall always remain. Continue to consume product. Amen.