Mr. DeMatteo is speaking nonsense.
Maybe he thinks his company isn't getting a big enough share of the limited output of the hottest selling item on the market, and this is just a bit of sour grapes on his part.
Nintendo has been running at max Wii production non-stop since well before the Wii hit the shelves.
Every Wii they sell earns money (unlike PS3 and 360, which lose money on every hardware sale), so holding back production makes no sense.
You can't just throw a switch and make more hardware production facilities appear (unless you weren't using the full capacity, of course). It takes time to find or build the space, install production hardware, secure more parts, train new people to run it, etc.
Now, if it was software, then yeah, they could ramp up extra production in a matter of weeks (as opposed to months). But making hardware isn't as simple as stamping out some DVD's, printing some extra paper, and slapping it in a box.
Trust me, Nintendo likes making money 
And if they could figure out a way to get more Wiis out there, they would be doing it (and, as the article above points out, they ARE ramping up production in April, less than 5 months after the Wii started selling...I expect that decision was made within days of realizing just how fast it was selling out over the first few days).
If there is any criticism you could level at Nintendo, it was being a bit conservative on their estimates for the demand. But they've always been a very conservative company, business wise (which is why they've been in business for 117+ years
).