I don't see it that way since I don't see any game as a piece of art, it's just interactive media that hasn't even scraped the refuge off the bottom of the expressionistic barrel left by the other mediums such as film, music or literature.
However, Fallout 1 and 2 are both very well made games, although buggy, while Fallout 3 is a poorly balanced, badly made, and obnoxiously marketed piece of junk. It's like a fine piece of furniture compared to a cheap alternative, I keep my antique mahogany table with a marble top because I've built up a fondness for it and it's sturdy and functional, I still use it to this day, but I'm not going to buy or enjoy a cheap knock-off sold in Ikea made by a bunch of machines in a factory that will break in a few year's time.
Fallout 1 and 2 are like that antique table, Fallout 3 is the cheap knock-off, at the end of the day I'm not going to call either of them art, but I sure as hell like one over the other.
That being said, Jason's opinion is not parallel with the majority opinion of this forum. Just because he was a developer on the originals doesn't mean that he's as avid and stoic a gamer as many of us are, perhaps he just looks for fun in Fallout 3 and whether or not Bethesda managed to pull off the Fallout feel, which is something entirely subjective.
If he liked it, that's fine for him, Fallout 3 is definitely entertaining if you're willing to play it casually and overlook it's flaws and that's what most developers do since they don't have time to explore the nooks and crannies of each and every game they play and then analyze them fully, they do have to work on their own games after all.