"Could it be Public Perception is the key to donations?"

YES.

For years SPCA shelters have euthanized healthy animals to create space for additional incoming animals. How many times have you heard someone say, "don't take an animal to the SPCA, they'll just kill it"?

SPCA spin doctors are now trying to bamboozle their own staff, volunteers, the media and the donating public into believing their alleged scientific assessment tool is a good thing.

People are now under the false impression the SPCA now only euthanizes animals with behavioural problems or medical issues.

The SPCA's assessment tool is simply a tool to justify their continued practice of killing healthy animals.