I've not yet been able to download and watch them all myself, because their server looks to be taking a beating. I will say, though, that I haven't noticed grievous problems with texture filtering on G70 cards in my experience with them, but they are indeed less than perfect at their default settingsso are Radeons, because both camps use angle-dependent aniso and other filtering shortcuts. Believe it or not, one place where I really noticed something like texture "shimmering" on the G70 was in Serious Sam SE, where the mountains in the background in a large, outdoor area tended to show problems. Cranking up the NVIDIA drivers' quality from the default to the highest settings pretty much fixed the problem in that particular case, though.
Finely honed debates about the intricacies of texture filtering routines tend to get very tedious, but we will keep an eye on this one and adjust our graphics testing methods for future reviews if we believe it's warranted.