Just once in my life, I would like to respond with: Yes. I was there and here are the photographs. See that arrow, since without it, you wouldn't know what you are looking at because it's so small, but that's the scratch and here's the video of him in the warm-up ring 5 minutes after being disqualified jumping like he's in the prime of his life. :)
Your comment regarding Adelinde Cornelissen was also mentioned as being another pathetic example of the FEI applying a blanket ruling. Like most riders, it's safe to assume they would put the safety of the horse over the honour of winning a medal. Obviously I wasn't there, but if Team Canada is saying the horse is 100% sound than I'm obligated to believe them. This isn't the first time an Olympic ruling turned out to be malicious with regards to Canada... so it's not a far stretch to suspect something like that.
The option of an appeal should be allowed regarding hyper-sensitivity because it really is an open ended book... perhaps an independent team of vets composed of several countries for total non-bias. It's just not fair that a team of ground judges, numbers + nations unknown, get to rule on something like this with no recourse for the competing team to dispute.
Serious?? Just because Canadians are severely underfunded and have very few qualifiers in their home country does not mean the FEI is malicious or rules against them!! Give your head a shake!
They DID appeal - the appeal was then denied. Everything has followed FEI policy and appeal rules. Suck it up buttercups.
FEI was not applying a "blanket ruling" to Adelinde either. The ruling was extremely clear in that matter that if there is any blood on the horse the ground jury must eliminate them. The resulting backlash led into a huge inquiry and it was determined that MOST decent people don't want an FEI horse trotting around the ring with blood running out of it's mouth BUT they added in a discretionary clause. So now the blood rule is discretionary, the same as the sensitivity rule.
Having actually been to, helped run and competed in international competitions (and with a horse with a nasty bit of scratches) I can tell you that the ground jury, the FEI vets, the FEI stewards, etc.. are all there to uphold the welfare of the horse, but not to keep riders from competing. Throughout the whole competition I was in constant contact with the vet over my horse's scratches and had filled out exemption requests for using a low grade antibiotic to get the horse through the competition. The horse was fine with any amount of poking and prodding and passed all the horse inspections just fine, including a hypersensitivity test.
Also - at these competitions there is a body of vets, stewards and judges from many countries making the decisions. They are all also very unbiased! the fact you would suggest that is rather appalling.