In some ways, it's the same situation. However, the big difference is that I'm not a colleague to the customers waiting for this feature. If they get frustrated

In some ways, it's the same situation. However, the big difference is that I'm not a colleague to the customers waiting for this feature. If they get frustrated, (1) I don't get to see them at coffee time being frustrated with my team, and (2) they have a quick fix for their frustration: but from someone else. Internal customers don't typically have that luxury.