Standard library doesn't always make things easier. We have urllib but do we recommend requests for doing http requests? So either Twisted is ported or someone else write a new Twisted-like (but simpler?). I know Guido doesn't like callback-style programming.
The point is some developers don't want to reinvent Twisted on their own. They like Python 3 and they want to keep up with Python 3 but they don't want to move away from Twisted. Just like I am asking you to write your own Django because half of the things to build Django is in standard library.
