The original has paid for the r&d, advertising and taken all the risk involved with launching a new product.
Copy doesn't have to factor any of that in and can shop around for the cheapest labour to get the copy done. As stated in the article even the supplier has started a copy.
Consumers still lose out if a product never gets created in the first place because its too much hassle to deal with copying.
As discussed in other comments, the "original" product from the author is in fact itself a copycat. Furthermore, for this product the author has mostly been using copyright and trademarks, not patents, suggesting that R&D was not their key input.
- The competitor's product is in stock, the author's product is not.
- The competitor's price is cheaper.
- The competitor's packaging looks better and advertises more pieces (while still being cheaper).
Albeit packaging appearance is subjective, and so is this: I think the competitor has a better product name.