I don’t think you’re listening to the testimony, reading the transcript, or watching any of the new videos (or reading the articles, really.) The OPS knew they were coming but didn’t realize how many locals were going to throw in with the protesters. They assumed that it was going to be just another protest that would evaporate on Monday. They were unprepared for how many people would be there and just how lawless and uncooperative they would be.
The Toronto police reacted the way they did because they saw what happened in Ottawa.