That can only accelerate a very limited subset of Python code. For numerical calculations it looks promising, but for a codebase like PyPI's it's probably no use at all.
Right - I'd say Taichi was not designed to accelerate the entire Python codebase. In fact, since Taichi needs to run to GPUs, supporting a very wide range of dynamic features of Python would go in the opposite direction of its original goal (faster compute-intense code such as numerical simulations).
Back to the main thread, I'd say the acceleration in Python 3.11 would benefit Taichi users too - there are still parts of Taichi that runs in Python (such as constructing the AST of computation kernels), which will run faster with 3.11.