If solving a problem isn't going to 1) move the stock price up and /or 2) move a metric that gets someone promoted or 3) help avoid significant negative publicity in some way, it's never going to get solved
This should be an absolute no-brainer: What do Amazon's customers want? Better, more trustworthy, not fraudulent reviews. Search results that reflect the intent and not gamified FBA/3P products. Confidence that whatever they buy will be what they want and will last.