This image says it better. Yes to opening up the street level.
As someone who actually likes the look of this store (albeit as a tourist), I think this is a good way to make it more visually interesting and street-facing while maintaining the monumental wall.
There was plenty of discussion about how that was a bad idea. It's completely untrue that it was 'unquestioned'.
HBC could have adorned it with a mural of the history of HBC, especially given that it is the oldest surviving business in North America.On top of which, HBC has great swaths of flat, unremarkable concrete at street level, making it even less inviting.