Wow what an idiot. Wii Play is a title that is directly tied to sales of new consoles due to its being an additional controller + a game, so whenever less Wii consoles are sold, less Wii Play being sold is no surprise.
As to Wii Fit + balance board, first I believe I read in several places that was supply constrained as well, and second, I believe a lot of people who would be potential buyers for that would be people who bought a Wii just for that initially (so they would buy it together with the console), so if less consoles are sold, again less Wii Fits will be sold.
The other Evergreen titles sold relatively well because they are much more "second wave" games, games often bought after someone already got themselves the console.
Pachter is truly an idiot (or maybe. just like IGN, he is trolling to get hits...).
Currently Playing: Shin Megami Tensei: Devil Survivor Overclocked, Professor Layton and the Curious Village
Anticipating: Xenoblade, The Last Story, Mario Kart 7, Rayman Origins, Zelda SS, Crush3D, Tales of the Abyss 3DS, MGS:Snake Eater 3DS, RE:Revelations, Time Travellers, Professor Layton vs. Ace Attorney, Luigi's Mansion 2, MH TriG, DQ Monsters, Heroes of Ruin