Here is the explanation from the VPD Insp responsible for Traffic:
Nothing in there is binding on the officer. It's recommendations on how to do things to get charges that stick easier, so as not to waste the Court's time when they get challenged. Constable Bercic seems to know already how to get his charges documented well enough to hold up to a JP, or higher authority.
What you're missing here is that Crown counsel does a review of the case, and always had the option of dropping things at any point in time. If they think the case is absolute bullshit, they'll cave and let it go. Based on my family LEO's experience they do NOT want to waste their limited resources on bad cops who don't do their jobs properly.
Crown must have felt the officer had put together a solid enough case, not only to push the first charge, but subsequent bumping up to higher courts.
I run into this situation a few times a year where I have to decide whether or not my case is strong enough to go to Court and set a binding precedent for my peers and I, or if I'm going to spend a bunch of time and effort and come out with a decision that will hobble the whole profession going forwards. More often than not I'll let the case slide when I'm not absolutely certain (or as certain as you can get going in front of a judge) that I'm going to win. If it's a matter involving the Crown I'll have a sit down with Crown counsel beforehand and we'll size up the case and see who blinks first. More than a few times I've had CC give someone at CRA or other government department a right dressing down for picking a stupid fight with me. I doubt they're any different in traffic court matters.
Crown looked at the case, sized you up, and realized that they could blow you out of the water. Self represented litigant, officer's notes (probably extremely detailed since you say you were acting like a roadside lawyer at the traffic stop), a hard to defend fact pattern, and a case that could set a positive precedent giving enhanced powers to LEO's in BC. You got set up alright, but not just the way you think you did.
As I've said before, going off half cocked on this matter did us all a great disservice. We're all stuck with the consequences of your poor decision.