1911, as much as I don't like it, I think you're right. Landowner lobby (Farm Bureau and real estate) has won on this issue twice already and with this legislative session, public support doesn't seem to have the steam behind it as in years past.
With that said, the pending litigation, and it may take a couple more years to work through the system, I fully believe will clear this up once and for all in the publics favor. The courts ruled unanimously already on constitutional provided public rights to the water. The only thing missing is the definition of that right, meaning ?wet boot? or ?high water mark?. When the courts define that, that's it, the court ruling will trump state law, unless the state constitution can be amended, which won't happen.
The court has already ruled that the public has a right to use the water, worst case ruling for the public, is ?wet boot? meaning you have to be in the water at all times. In the long run, my bet is on the public.