In order to use shared updates to pre-allocate the storage for mit-mot input and output loops, `Scan` would need to remove the corresponding mit-mot outputs from its inner-`FunctionGraph` before compilation and it would expect the `Function` compilation pipeline to add them back at the end of the remaining outputs. Now, `Scan`'s inner-`FunctionGraph`s maintain the same form at every point, and no special logic is needed to compensate for post-compilation changes in the order/location of inputs and outputs.