Yeah, it's good considering that the game was culturally insensitive, a genre that Japan didn't like, on a launch system with a small userbase, published by a pub that does poorly in Japan, wasn't really that great, etc, etc, etc
There are two points to be made, though:
1) He held this up as an example of "good" sales, not "good, considering" sales.
2) "Good, considering" is the entire argument I've been making. Yes, you can rationalize EVERY SINGLE BOMB. Zack and Wiki? Niche. We Love Golf? Saturated genre, no marketing. Chocobo? Niche genre, series decline. Games would sell more if they were better. Games would sell more if there was less competition. Games would sell more if they were cheaper.
... but historically people haven't had to do all this.
I went through every first-year PS2 title on Josh's database. There were a few 10k-level bombs, but matching for the quality and profile for the game, the 10k-level bombs were all Simple series-style garbage. The B/C level titles were doing 35-70k. There were a number of 200k+ A-level titles.
I don't want to speak for why this isn't happening on the Wii, but it isn't. On an aggregate basis, Nintendo's success more than makes up for 3rd parties failures in the numbers game. The problem is that this could be very harmful going forward, because 3rd parties care about THEIR numbers, not aggregate numbers.