I find it somewhat useful, Mark. In large projects it can be a lengthy process for changes to take effect, and so it’s handy to be able to make various changes in one go and then do all the waiting at the end. Also, given it’s possible to shunt the dialog out of the way of the score (or onto another screen if you have multiple screens) it’s nice to be able to see what effect an option has on the score without having to close the dialog (and possibly bring it back a second or two later).
But yeah, maybe it is somewhat Windows-like!