Well, Adobe does not only claim quality issues, there are severe issues. You really need to check your assets before submission. The errors in these assets are flagrant and even visible without looking at the detail. Just because you used Firefly, does not mean that it is perfect.



Without even looking at the details, you see that many defects, that it was easy to reject.
One issue with geometry is that AI has no clue about how it should look correctly for non-organic structures, like windows or desks:


If this were an ancient office building, I could imagine that the windows are not straight in a line. That never happens with newer structures.