Useless maker.ini entry?

This is not about a real problem, which hinders our work - nevertheless I hope i get some comments.

In FM-15 (2019) a maker.ini entry was introduced: ShowNewWindowsDialogs=On

With the intent to use the standard Windows dialogues for import, open, save as. Now I have observed that on my Windows 10 system even FM-10 uses the same Windows dialogues as FM-15 does.

Switching off the maker.ini entry both in %appdata% and in $HOME for FM-15 has no effect at all.

But i can remember that on Windows 7 (beginning last year) FM-14 dialougs looked differently...

My open, save as and import dialogues are this for FM 15 down to