I don’t know if that is _more_ important, but I agree that it is also important :)
The reason I say this is that while users will expect this behavior, doing it well (so that it can be parallelized, for example) requires careful thinking about how errors should flow, how lines are printed to stdout, etc.
The reason I say this is that while users will expect this behavior, doing it well (so that it can be parallelized, for example) requires careful thinking about how errors should flow, how lines are printed to stdout, etc.