On the approach described here, it obviously remains open to the players, in playing their PCs, to disagree with the NPCs who are adversely judging them. And while the GM has authority over what the NPCs'
opinions are, there is nothing to suggest that the GM has authority over whether the NPCs are
correct.
On the approach described in these posts, on the other hand, the GM gets to decide not just
what NPCs think about a PC's behaviour but
whether or not that PC's behaviour is, in fact, good or evil.
If a group wants to give a GM that sort of authority, I guess that's there prerogative. I agree with
@Mecheon,
@FrozenNorth and I think some other posters also that to build an
expectation of that sort of authority into the game is not helpful. For obvious reasons - given the reality of diverse views among FRPGers about what counts as good and evil, particularly if the fiction of the game takes on any significant degree of nuance, it's a recipe for needless conflict.