I can't be bothered reading or watching the whole thing. But just looking at what I know to be true, I'm assuming that it was the best tires in the segment where no other tires other than Pirelli GTs were used.
Ive been meaning to post my experience with the Pirelli Angle GT - I can't understand why someone would post something like this if they haven't even read the test. Motorrad TestCenter is a reliable source of information.
Anyway, after going through a few sets of these tires including 2 track days at Willow Springs Horse Thief Mile, I can say that these tires are pretty damn good. The tires stuck like glue and and had surprisingly little wear on them. A couple other FJR riders were there using the Angles Gt's and they seemed to like them too.
Compared to the BT23 GT that i was using these seem to turn in easier, gave better bump assorbtion and in general seem to out perform the BT23's which preformed well.
In terms of longevity they last a little longer than BT23, and the PR3, getting about 8500 miles on the rear. Comparable to what I got from the PR2's but better in every other way.
Like the Pirelli Diablo the rear tire has no tread in the middle but GT has more visible wear bars so you can see when the tire needs replacing. They handled well through out the life of the tire and only felt heavy at the very end.
In terms of value the Angles are in the upper end at about $300 per set compared to $230 for the BT23'
In conclusion, of all the tires I have used including the PR2 PR3 and the BT23, I like the Angles the best.