The concept of a prosecutor showing cause is a concept that is repeated throughout the bail provisions. It's not just in this one subsection. It's highlighted in the bill a bit, because this is a new provision that has been moved in the bill.
However, if you look in the Criminal Code at section 515, as well as other sections, this is the language of the bill provisions. Changing one instance of it would establish a new test or a different test, or different wording, possibly meaning the same thing and possibly causing some confusion.
Where the standard has been established in cases like Morales, that will apply to what's in the code, and the justices will know that. The department's concern would be with changing just one instance of it.