I agree with you, but it will never happen. GvR wants a as-simple-as-possible reference implementation, for one, he has to maintain it with a volunteer dev team. Also, there's a split in the Python community between guys like me and you- and the scientific squad. Until the scientific stuff works 100% in PyPy you'd lose a significant portion of the Python userbase by dumping CPython.

GvR has done enough damage to Python with Python3. I don't intend to encourage him to do make any more changes. Us Python web developers are better off using what we have (non reference implementations, which don't hurt anyone), or just use Node.js.