Don't hold your breath for an explanation from the SPCA. My personal experience for several years of asking the SPCA questions is that they do not answer.
Consequently, it is my belief, that until there is a major change in the SPCA's culture, critics and questioners are facing a brick wall of silence.
If the SPCA cares to tell me otherwise, or even answers some of the other questions I've asked it over the years, I invite it to do so. I should like nothing more than to reverse my negative attitude toward the SPCA.