Lets ask a different question: why do you think this
particular functionality is needed at all? Have you encountered any
problems which require it (I haven't, btw)?
Windows drivers do a lot of things, but it does not mean all of them must
be copied literally.
I would image using this to verify that stick is still in place on I/O
If I just power down/up it, it will loose state, for example IO mode,
reg range, etc...
But anyway, this isn't very important.