Ib causes big problems in audio use, as the output coupling capacitor's polarity has to be decided. Does the electrolytic cap (+) or (-) go to the op-amp's output?
So sometimes a little intentional DC offset is desirable, from omitting the extra resistor.
I've seen in Neve consoles the NE5534's age and output offset drift and change polarity, which aggravated output coupling capacitor failures.