Races with nuance, are more interesting than being 100% one alignment or the other. Drizzt was already not Chaotic Evil, so there has been precedence within the Drow for a start.
Not sure what the fuss is about, things change and if anyone wants to run D&D campaigns with purely evil Drow or Orcs then nothing stops them, but now GM‘s have more options (which one could argue they had anyway if they so chose to, it’s just players have to rethink what their initial reactions are and that’s for me a good thing).