Just trying to understand, is this a bad thing?
Someone else made an open source CLI spinner library which also uses other people's existing open source libraries. This saves a lot of time and gives developers many good options.
Should Pika write and maintain its own custom CLI spinner animations? Are you saying the CLI spinners should be standardized in the next version of ECMAScript itself?
How is this worse than the same thing written in Python, for example? (I mainly use javascript, so maybe I haven't been exposed to the kinds of alternatives you're thinking about.)