People can always be healthier (and patients that meet weight-based diagnostic criteria are, AFAIK, informed about their elevated risk and advised to lose weigh

People can always be healthier (and patients that meet weight-based diagnostic criteria are, AFAIK, informed about their elevated risk and advised to lose weight pretty reliably). I think this study seeks to identify additional intervention that would save lives with our current population - not project about how few people would die given some unrealized set of overall public health stats.