Right... but it's still only 15% faster than a simpler alternative. In a language that is 50x slower than the alternatives. Clearly not worth it.
Of course the counterargument is that they'll improve it and maybe in future it will be 100% faster... But that seems pretty dubious given the progress so far.
When I choose Python for something, it is clearly for its speed.
It is nice to have the speed, always. But in Python, it would be a mistake to do it at the expense of flexibility. Same for typing: it is great to have it. I use it. But Python should be dynamic and the rest and extension that does not compromise everything else.
If a JIT can make Python 2 or 3x faster, or even 10x for some workloads, that is nice. But the language itself should support same idioms, reflection, dynamic typing, etc at the same level.
Of course the counterargument is that they'll improve it and maybe in future it will be 100% faster... But that seems pretty dubious given the progress so far.