It's quite easy to test this very assumption against chaos theory in a controlled environment and demonstrate why a system involving a complex chain of dependencies is increasingly unpredictable down the chain.
As an uninformed consumer at or the bottom of the chain, you cannot trust that an interface that works today, will work tomorrow, for you do not have access to all of the chaotic variables which constrain the interface.
As an uninformed consumer at or the bottom of the chain, you cannot trust that an interface that works today, will work tomorrow, for you do not have access to all of the chaotic variables which constrain the interface.