Arguably too much of a compromise. This is just Guido doing a "because I say so" and imposing his bias against functional programming. Give me a properly-designed language like Ruby any day over Python's bag of compromises.
So somehow, languages promoting big chunks of anonymous code never win never win the public heart.
In fact, when you are force by an accidental monopoly to use ine, you get js. What do people do in JS ? Multline lambda are mapped to property names or replaced with await. Registries are used in every framework. We spent 2 decades fixing JS to use as little callback hell as possible.