The answer is not credible.
So they can't disturb the peace of their passengers who have to listen to the dogs destined for "research."
I think it's great that the passengers were disturbed, and that some of them complained, but just switching the dogs to another carrier does nothing to solve the problem.
I supppose if people on the other flights also complain, the dogs will just be heavily sedated so that no-one is disturbed by them.
And vivisection proceeds, quietly, out of sight, out of mind, a huge money maker for those who participate in it, and a crime of great moral proportions.
Shame on Canada!