Those are awful sites.
However, they contain only the old rehashed info about the exposures from 2002. I agree that what went on was appalling. But I'm convinced that there is not the same things going on now. If there was evidence of right now, I'd be on the phone now to the shelter in a heartbeat.
I don't think it's fair to tell people they are feeding their beloved pets something that contributes to cruelty unless you know for sure.