Here’s my non-legal opinion. The Act says:
(1) An owners corporation cannot, in respect of its costs and expenses in proceedings brought by or against it for an order by the Tribunal, levy a contribution on another party who is successful in the proceedings.
You were successful. The Act doesn’t say anything about being partially successful. I would email the strata manager and ask them if they really want to go round again and charge another set of costs to the owners.
If he doesn’t amend the motion, I would go to the meeting and ask the owners if they really want the strata manager to play double or quits with their money, given that you didn’t actually lose on the other issues, you withdrew them as a courtesy.
One of those “Do ya feel lucky, punk?” moments for the manager.