The public may react as they see fit; the correct answer however is "no." If the car is OK though and the papers are all there, it could still be worth buying if you figure in an inexpensive paint job to fix the problem with the "satin" stuff.
its either satin or flat... which is it? If there's a slight shine to it its satin, if its completely dull.. its flat
Flat colors dont do well with weathering.. and will show oil spots/fingerprints/road grime.. it'll never look quite right. I dunno if you're ocd like I am but that would drive me batty. Mine is obp and it'll be my last black car.
opinion wise everyone is going to have theirs.. what do YOU think? Like SD_GR mentioned.. as long as the paperwork and machinery are straight.. paint can always be applied if you're unhappy with the appearance.