It would only cost a small fraction of the money raised to prevent huge losses. Why shouldn't a project owner be obligated to spend a few percent of their total

It would only cost a small fraction of the money raised to prevent huge losses. Why shouldn't a project owner be obligated to spend a few percent of their total raised? The burden of logistics falls to the project owners. If they can't even be bothered to create and verify a project plan, then they don't deserve a single cent of the money they've raised anyway!