PS3 hardware got a mediocre review because it wasn't being utilized anywhere near its full potential -- a point that, arguably, hasn't changed much today.
Yeah, arguably. And obviously Ars argues differently.
Look, it is very clear that Ars reviewed the PS3 for a 6 for reasons they stated in the original review. They make clear in this re-review that a lot of those original issues they had with the PS3 no longer exist, and a lot of other features have been added as well.