You wrote, "Why do you think they would not be re-homed? You only have negative endings. Why is that?"
I'm not sure who you are referring to by "you" in "you only have negative endings". AAS has nothing to do with the dog's endings, negative or otherwise, that is up to the Kelowna SPCA or the law.
But to reiterate, the Kelowna SPCA has said that the dogs may have giardia and that might be the SPCA's excuse to kill the dogs. Time will tell, but the SPCA has used vague ill-health as a reason to put down seized animals in the past.