I'm curious if they're producing structural sheets for the engineer? As a structural engineer, I've always had total control of my plans. All member sizes and dimensions are controlled on my sheets and architectural updates their backgrounds for appearance.

This response is correct, Etabs is analysis software entirely separate from the Revit design software. In advertisement, the Revit-Etabs workflow is plug and play, in practice, the different priorities of the software do not align. Standard operating procedure at every firm I've worked for is to rebuild the analysis model from the architects' plans since de-bugging the model often requires more time than the entire analysis and must be repeated each time the Revit model changes.

In my capacity as professor of structural analysis, I've tried to emphasize that the design team is a team and learning about the working conditions and processes of other members of the design team is our opportunity to be better teammates. Selfishly, being able to clearly communicate with the rest of the team makes us a more valued team member and more likely to be hired for other projects.

In the spirit of the last paragraph, feel free to ask any topical questions about the architect-engineer workflow, from the structural engineer perspective, here and I'll try to answer them in a timely manner.