The miners will mine whatever is most profitable. I’m just betting that the price will go up pretty constantly, so stuff mined early will be worth much more later. There is no other way to acquire other than mining, so I don’t think it could be a ‘lose’ - miners won’t sell at a loss. Although it could well be a less favourable investment than just holding btc.
I guess it just depends whether you think the price will keep going up through 2017 if it works. I think it will, it has a good recipe for success… it’s no safenet, but it’s still pretty cool imo.