Which, in turn, means the price of pork products can be expected to increase by ~20% to compensate for the lost production capacity. That's enough to cut down on the amount people are going to be buying, certainly, but it's hardly "California has no more bacon," and it's not such a prohibitive loss as to warrant cutting out California's market entirely.
The fact that so few pig farmers have hit the targets is less a matter of those targets being unattainable and more a matter of them deciding it was hard and hoping the law would be changed before coming into effect.