This looks like very idealistic approach. The world does not revolve around perfectionist's wishes. As for "...means it hasn't been maintained for 20 years..."

This looks like very idealistic approach. The world does not revolve around perfectionist's wishes. As for "...means it hasn't been maintained for 20 years..." - the OS did maintain the old API's and the way they behave to make sure old software that uses said APIs still works on new OS. Does not mean that the new APIs were not developed.