Thank you for your post.
This issue has been previously reported, and our Development and Testing departments are aware of the differences between Mac OS X and Windows. No other information is available at this time.
I have attached your post to the original report. When more information becomes available, I will let you know.
I actually prefer the Windows result. There's a bit more scrolling to do to spot all the matching script names, but I can better see where the search script resides within the script folders.