Suggesting we calibrate our reaction based off other examples of animal suffering isn’t an objective take. Some people don’t want any animals to suffer by human hands. Some people are opposed to animal trials in their entirety. Some people might oppose their use in this particular instance. Some people might just have a hard cut off at three dead mice. Whether or not this number is industry standard can be beside the point for someone else, and it doesn’t mean they’re being “preyed upon” or manipulated for reading and responding to a fact using a different moral framework.