Was it my imagination or did that "Analyst" have the english skills of a highschool student?
There is no doubt that third party games have not sold particularly well on the Wii, but the important thing isn't what the total sales were it was how the sales matched up to expected sales. Third party publishers are not (that) dumb, they realize that the "Best" games on a system tend to sell far better than most games and are only (really) upset when a game fails to meet expectations; and (potentially) only really upset when a collection of games fails to meet expectations because there will always be games that fail to meet expectations on any platform.
From what we have heard so far I don't really think that publishers are upset with sales nearly as much as they are confused about what they should produce for the Wii. Most third party games have fallen into two seperate categories, games exactly like PS2/XBox games with tacked on Wiimote controlls and games based on a stereotype of what type of games "Casual" gamers want.
The problem with his prediction about the PS3 is that (like many well paid analysts) he doesn't really understand how much money $400 is for the typical household. In the USA the median household income is $44,000 with 68% of households making less than $75,000 and 85% making less than $100,000 per year. (Numbers from Wikipedia)
