I agree with the ruling (and I'm Canadian). Horse welfare aside, there has to be a zero tolerance policy for things like this, otherwise it opens the door for some teams to be treated differently than others. As soon as you start adding if's, and's, or but's into the equation you leave room for officials to make decisions based on the wrong reasons.
We weren't really in medal contention anyway. I think we did well considering. We'll never be as successful as we were when we had Hickstead.
I didn't read this article(unless it's the same one I read yesterday) but in my opinion the DQ was a bit ridiculous. The article I read said it a was superficial cut, in which case it most likely was not bad at all, and the article I read said they didn't even jog him to see if he was sound. It's so easy to get a superficial cut, and it probably caused no damage and would not have hurt the horse to have shown at all. I feel bad for Tiffany that her first olympic experience ended like this. Also, this doesn't 100% relate to this thread, but I think horse's should jog for soundness/vet check first & then be allowed to have certain precautionary medications, such as bute. 1.60m for multiple days in a row is HARD on a horse. And yes, I realize the FEI does all of this for the horse & rider safety, but still, it's a bit over the top sometimes...
Also - at all FEI events the horses are jogged prior to the event starting. There is also an in barn inspection. Horses are not allowed any NSAIDs at all. However they are allowed certain antibiotics, topicals, etc.. with an exemption request form and an FEI vet signature. Allowing NSAIDs is a whole 'nother story and IMO again I side with the FEI on their zero tolerance policy about NSAIDs in international competitions. There is a whole series of rule books just with regulations for these competitions and it is a very dry read.