Well yeah, that could theoretically make you more efficient, but let's try this one out:
Imagine I'm a pipe tobacco company. Let's call my firm Smornell & Giehl. Now imagine I make exactly one blend, Old Moe Pantz. People like to smoke Old Moe Pantz, and business is good. However, my customers like variety. They'd rather have four ounces each of four different blends than a pound of Old Moe Pantz. Currently, even though I do a great job at blending OMP, and I'm very efficient at it, I'm only a fourth of any given customer's stash of tobacco.
So I get a great idea: Smornell & Giehl is going to release a new blend, and we're going to name it Black Sailboat. Black Sailboat has a lot of Latakia in it, unlike OMP, and some people like it enough that they stop buying as much of my competitor's blend, Afternooncap, and instead substitute toward Black Sailboat. So now I have two blends, and both are selling pretty well, and I'm now taking up about a third of each customer's cellar, instead of the one fourth I previously had. Customers are happy because they have more variety, and I'm happy because I'm making more money.
Old Moe Pantz has been such a success, I decide to introduce a similar blend: Old Moe Pantz Purple Label. Some people think Old Moe Pantz is too heavy on the Antarctic Burleys, but they love OMP Purple Label's more refined flavor. Now I'm selling more tobacco than I was before, not only because I'm giving the customers more choices, but also because I'm expanding into new clients who previously didn't have any interest in the one blend I was making. Life is good for Smornell & Giehl.
Now imagine something terrible happens: the star ingredient of Old Moe Pantz, Antarctic Burley, suffers a terrible crop shortage. I can't produce any OMP until next year's crop comes in. Now I'm super grateful I expanded my line of offerings so I didn't have to shut down my whole production facility and pay unemployment insurance to my workers for an entire year until next year's crop of Antarctic Burley comes in. Diversifying my production really helped me mitigate risk, either from unpredictable crops, or from changes in consumer preferences.
Disclaimer: there is obviously a point at which it doesn't make sense to have any more blends on the market, either from a production capacity standpoint or from a consumer choice standpoint. But I have every confidence that C&D thinks about this, and makes an informed decision on whether to introduce a new blend or not. We would see a diminishing marginal return on introducing a new blend, but I don't see any evidence that C&D is so far along that curve as to be hurting themselves by producing new blends.