OpenAI algorithm for the FFT is less a breakthrough and more a malicious exploit

The OpenAI team claims to have improved the speed of the Fast Fourier Transform (FFT) algorithm, but the improvement is said to be based on a previously known technique, and some experts consider it to be more of a malicious exploit than a genuine breakthrough. The technique is based on the Winograd's minimal filtering algorithm, which was invented in the 1970s, and is said to reduce the number of complex multiplications required by the FFT algorithm from 24 to 18.