Ogilvy on Rideau is a bit ironic since the structure was actually in fine shape. They could have saved it easily, but I suspect the "need" for parking was their main reasoning for demolishing, with layout coming in as a secondary motive.
I hope they are able to save the actual building. I won't be as enthused about the development if they need to rebuild. I'm generally against modern replicas of heritage buildings, but a replica using original materials could be worthwhile to a certain extent as a memory of what the site used to be.
I don't think any of it is NIMBYism. The convent is a small part of the entire project.
The previous design was oversized compared to the convent. I didn't mind the buildings farther out being that scale, but the one by the convent should have been smaller in scale. I don't remember if this was approved or not, but I don't think it was rejected by the City. Ashcroft made the choice to abandon the convent and let it rot, and they weren't in a position to build up the rest of the site.