Though you couldn't set the bar any lower without it turning into a joke.

Anyhow, to quote Wikipedia:

Comparing different encodings (JPEG, x264, and WebP) of a reference image, she stated that the quality of the WebP-encoded result was the worst of the three, mostly because of blurriness on the image. [...] In October 2013, Josh Aas from Mozilla Research published a comprehensive study of current lossy encoding techniques and was not able to conclude that WebP outperformed JPEG by any significant margin

All while having significantly increased complexity. The blurriness problem was inherited from the video codec webp was based on. When you can't beat an 18 years old format, don't be surprised when people get irritated when you use your position to get it mandated into a standard, while later stalling actual improvements (JPEG XL).