I disagree, people should know the consequences of irresponsibility when feeding live and this shows that perfectly. The original intent of the photo taker is immaterial as the OP placed it here with a pretty clear intent. I have seen this pictured posted several times now, mostly as non live feeding propaganda. In this case it was posted as a reasonable point that you need to be careful when feeding live. Which situation is more accurate and helpful?
Just to counter point your shocking images rant how much money do you think aspca or child hunger campaigns bring in by posting sad starving animals/children? It is by no means a small amount. I see these type of photos as reality and think it is good we do not ignore the consequences of our actions or future actions. I think it is easy to say a snake is a predator and it will easily take care of its prey, but in nature this is not always true. Usually the snake wins, but sometimes the rat wins.