Of course it serves a purpose. If ONE person thinks "hey, maybe I won't take my kids out when there are severe storms forecast", it is worth it to remind them over and over that you can make a selfish decision and cost your kid his/her life. Three families DESERVE to be devastated, and I have little sympathy for the parents of these kids. They might as well have murdered them outright. And no, I have no reason to be ashamed of myself, I didn't get my kids killed.
Your comments do not reflect the reality of the situation. As a meteorologist and former lifeguard, I can speak with some experience to this subject. First, during the spring and summer afternoon thunderstorms are a nearly daily occurrence in Florida. People do not refrain from boating activities just because they are forecast, and there is no general reason for them to do so. If they did nobody would go boating in Florida during this time of year. Prudence dictates that boaters should monitor the weather and get off the water when storms approach their particular area, of course. Sometimes, but not always, one can see them coming well in advance, either visually or via radar. However, on some occasions the storms develop rapidly in the local area instead of tracking in from afar. In these cases radar monitoring will not reveal them in advance for the obvious reason that they developed in the immediate area. In these cases boaters have to react very quickly and head to shore. Occasionally the storms are too quick for them and they get hit before they can reach shore. This is an infrequent occurrence, but it does happen. Lifeguards have the same issue on the beach. We don't close a beach just because thunderstorms are forecast for the general region, which encompasses several hundred square miles. Rather we monitor any storms that enter or develop in our area and clear the beach as soon as a threat is perceived. This has always been regarded as a prudent course of action in the profession. In the Lake George case, the indications are that a rapidly developing storm struck and even prudent boaters may be caught on the water when this occurs. Your comments, besides being insensitive and crude ("Three families deserve to be devastated.") are factually inaccurate. and yes you should be ashamed of yourself.