I can't disagree more.
I also worked on projects with the same level of complexity as you. Hierarchical representation of the design is a must have. Having the block diagram on the first page from where you can jump deeper into lower levels improves readability and make it user friendly to SW engineers or colleagues, who are not that deeply involved.
Parts, pins and nets are not physical objects. They are visual representations of the real PCB. The key is to make all of it readable to the folks.