I don't think you get it it....these aren't good quality carved limestone bits, and dating from 1930 doesn't change that. Why would you want to save them and pin them on something?
I'm all for this sort of thing, but you can't just expect people to preserve every piece of junk ever constructed. It would appear that the problem seems to be that people can't discern between junk and quality. I understand that sometimes buildings aren't of significant architectural value, but are of significant historical value...not the case here either (unless you think selling over-priced Barbour coats are of significant historical value).
The 1845 William Thomas (St. Lawrence Hall, St. Michael’s Cathedral) facade in the galleria is both high quality and of historical significance...the 11 facades of BCE Place are the few survivors of the fire of 1904.