The product itself fits (in my mind) in the nutritional supplements / meal replacements category and wouldn't have ordinarily gotten the attention of HN and startup investors.*
I wonder if this is an anomaly or first blood. Maybe startup culture is spreading to other areas. Startups haven't themselves been necessarily creators of technology (tricky to define). Many are just something that is enabled by mass adoption of some new technology or the cultural shifts that came with it (eg cloud based enterprise software). The whole world seems to be changing fairly rapidly now. That means there might be room for startup-culture to infiltrate even more areas. Tech savy, risk tolerant, big vision, funded, etc.
*I've got nothing to say about the product itself really. I like eating, personally.