Many of the reasons authors states are quite silly. Personally I don’t like the huge perf hits everywhere you look. For example, a bool in Python takes whopping 24 bytes! Multi threading is a giant mess due to GIL that apparently no one can get rid of. Things like true static variables are missing. Import behavior differences for programs and modules is baffling. Lambda is intentionally kept under powered (ex. no group by). Need to create new environments to avoid conflicting package versions can quickly become annoying (could have been improved by side by side versions).
Still, I don’t hate it at all. It’s good and beautiful for lot of other stuff.