This is a bug that may remain a feature.
The swap from No. 3s to Operational Dress in the NCR was made because LU has depleted stock of the former style of Army DEU while they retool and stock the new Canadian Army Service Dress. As the RCAF and RCN would be disadvantaged in being required to wear No. 3s while the CA pers wore Operational Dress, it became an "all for one" decision.
If this remains after the new Canadian Army Service Dress is in full role out, that remains to be seen.
So a Garrison Dress?
Kidding aside, I think we overuse operational dress and underuse No. 3 Dress. There is no reason why in Garrison we wear the asses out of the most expensive clothing we wear because we cannot be arsed to wear business attire.
The fact that we turned business attire into a "once or twice a year" parade uniform due to discomfort and ahitty material is another issue entirely.