I'd totally agree - perfectly normal doesn't mean it's right!
I'd not considered the dual role - boot camp & Parallels. I was thinking more of running it as a VM in which case the screen saver is a bit irrelevant. However, running it in Boot Camp is a completely different kettle of fish.
I suppose it should be possible to do some form of batch file and leave it on the desktop; probably just a .reg file.
.Glenn