Devil's Cove gets blamed for every death on Lake Travis. I don't remember a death in the Cove in the past two years. And both of those happened because a drunk person decided to do do something stupid to themselves on a water slide, which had absolutely nothing to do with anyone elses boating abilities. Most people who have drowned in the lake the past few years died while swimming on shore or on a dock.
You are correct that there are a number of idiots in the cove that can't operate, but you, along with most people in Austin, are way too quick to blame the people who go to Devil's Cove.