Yeah, it's kinda weird how harmonious it all ended up, honestly.
Though for what it's worth, OS X did kinda mess up the Finder. You can kind of get back the pre-OS X behavior, if you hide the toolbar in a Finder window.
Folders will then open in new windows, and the key is, these windows remember location. Whenever you open that folder, its window will come back to where it was when you last closed it.
This is one of those things that's so simple that it sounds dumb, yet it's critically important to people who are used to it. When it's gone it's like your desk drawers are changed around, or perhaps all the desk drawers are now the same drawer and there's some unintuitive technique for getting the things you want to appear in it. Old school Mac users learned to count on this behavior being rock solid and consistent.
And OS X...kinda fumbled it. Sure you could hide the toolbars and enter "spatial Finder" mode, but sometimes the toolbars just return for no clear reason, disabling the mode. And it's been rocky how reliable, or not, this has stayed from version to version. John Siracusa used to have legendary rants about this back when he wrote the reviews of OS X for Ars Technica. (which is honestly probably the only reason I care, I grew up mostly on Windows and so never learned to count on this behavior.)