I don´t really need it, I just think it´s a bug. You can use quotation marks in Windows itself if you want to open a folder and in some cases it is mandatory when using folders that have spaces in their names.
"Go to folder..." option works fine using paths with spaces in them, without quotation marks. Maybe the bug is in Explorer? Just kidding, maybe you're right... Marek should know if it's a bug or not.