There have been issues with 'clone' boards lately.
They didn't come with either the ATmega8u2 or the FT232R, but with some IC by 'Prolific'. Suffice to say people were still trying to install the FTDI drivers or the .inf file, depending on what their clone pretended to be.
Maybe there could be a note/hint to check the vendor/product IDs if the 'Arduino driver' refuses to install.
Addendum:
Of course we could say "why should we care?", but in the end people with these modified clone boards end up here and we spend our time that would be better spent elsewhere.