Irreproducibility can result from irreplicability or many other reasons. Publishing the code & data helps rule out the trivial replicability failure: that the

Irreproducibility can result from irreplicability or many other reasons. Publishing the code & data helps rule out the trivial replicability failure: that the authors made an implementation error, so the result is not reproducible. Establishing replicability is essential, but that won't prevent all irreproducible results. Attempts to reproduce results under different conditions are still necessary for the functioning of the scientific process - but they are a waste of time if the original result is not replicable.