I agree that it sounds like a cop-out. Especially that whole over-eating does not make you fat thing - of course it does! Everyone throughout history has always known that! I mean, duh! If you eat more, you will be fat!
But I also think there might be something valid in it as far as a pre-disposition to obesity goes. Because clearly there are differences between people, 2 people can eat and exercise the same way and end up different sizes. Some people eat maccas every day and are thin, some people eat carefully and have to constantly watch themselves. So this virus could have something to do with that. But I really doubt there would be any 'cure' other than eat less, exercise more. If a virus does make you more likely to become overweight, then a vaccine or something is gonna help you stay at goal weight. But you'll still have to get there yourself. I mean, what they are saying is that the virus changes stem cells to fat cells. Well, a 'cure' isn't going to reverse that, you'd have to do that yourself anyway.
Yeah, sounds a bit dodge to me.