You never know what the circumstances are. It sounds bad, but there could be a story behind it. Maybe the person has a medical condition where they can't lift things over 10 lbs, maybe their apartment doesn't allow dogs over a certain weight, maybe it's from a breeder.
It's always a sad situation. and I truly hope that this little one (who is ADORABLE) can find a wonderful home. But I just wish people would stop jumping to conclusions.