That’s the way the cookie crumbles.In a written opinion last week, U.S. District Judge Robert W. Gettleman held consumers who allege a vegan cookie label exaggerates the products’ protein content exceeded their reach by seeking to pursue claims against the product’s manufacturer on nationwide and multistate bases.Differences in the misrepresentation, warranty and unjust enrichment laws of the 50 states would make a single nationwide class unmanageable, Gettleman wrote, citing In re Bridgestone/Firestone …