It de-incentivises innovation that isn't worthy of a patent. Patents (ostensibly, in their original intent) exist in part to allow innovators to know that a competitor can't just go off and clone what they did, but has to license from them or counter-innovate a novel alternative.
In practice this won't stop all possible competitors, specifically those that flaunt patent law, but I don't think Amazon is one of those. Amazon could likely buy a license to the innovation from the patent holder for less than dealing with the courts would cost, in which case the patent system would be working as intended.
In practice this won't stop all possible competitors, specifically those that flaunt patent law, but I don't think Amazon is one of those. Amazon could likely buy a license to the innovation from the patent holder for less than dealing with the courts would cost, in which case the patent system would be working as intended.