I think you're reading into it. They are stating that the solution in the post was overengineered, and describing an alternate solution that doesn't require as much abstraction or resources, but is manageable for data with a much higher dimensional structure
The fact that you read that as "I am very smart" and that that was a reason to downvote the post, tells more about you than it does the person you're supposedly describing.
The fact that you read that as "I am very smart" and that that was a reason to downvote the post, tells more about you than it does the person you're supposedly describing.