I think with Bret being the technical aficionado he is, he gives his views from the perspective of a traditional grappler. So when he gave his rating on Taker/HHH last year, he was doing it with the pure wrestling enthusiast way of thinking.
I personally disagree with the rating, mainly because there's not much technical skill needed in a Hell in a Cell match.
Now, while Triple isn't that great, or even good, from the technical standpoint, he does an EXCELLENT job of invoking emotion from the crowd. That's why I loved the HIAC match with Taker, because it had a plethora of emotion.
However, I do agree with Bret in the regard that Hunter's perceived "greatness" is a bit overrated. Now while he has had some great matches in the past, those were YEARS ago, and even though I have him in my personal Top 5 (mostly due to him being able to play a great heel), I don't consider to be on the level of guys like Austin, Rock, Taker, or HBK (who, if you ask me, HHH was riding his coattails till Shawn got hurt). His greatness is a definite product of WWE's hype machine, for sure. And it also helps if you're married to Stephanie McMahon.
But hey, I'm not hating. that's just my opinion.