I understand your point, but "Finder" does make it harder to organize things. When you save, they hide away folder browser by default, make it really difficult to navigate to different folders, and push for a "just hit save and search for it later!" mentality.
I agree you can overcome this, but you find yourself fighting against macOS a bit to do it.
(Also, I'm surprised nobody's mentioned this isn't a blog post... it's an ad. So of course the issues are exaggerated a bit. The ironic part is I don't think the app actually solves the problems mentioned.)
I don't know where you get "really difficult" and "fighting against macOS" from. You only have to hit the disclosure arrow next to "Where" in the save dialog one time and it remembers it and shows it by default from then on. (Okay, maybe it's once per app? I don't remember for sure, but I can't remember the last time the save panel didn't show me the folder browser by default.)