I disagree that this is a requirement. It is a strong nice to have, but even if the code isn't maintained or runnable on other systems it is incredibly valuable as a reference when reading through ambiguous sections in a paper to go look at what the author was trying to do.

Will it take some work to reproduce the results with broken code? Sure, but its better to have the code than not. Cleaning it up might be the straw that prevents that code from getting released at all.