Japanese devs hop off the PS3 boat into the Wii wagon
The context of Shin's quote relates to developer interest -- namely, they're leaving the Sony restaurant and taking some drive-thru from Nintendo's Wii window (so to speak). If devs focus on the Wii, we've got a problem. Games will reverse engineer themselves to lesser graphics and scale. More minigames isn't the only issue to arise -- porting from the Wii would be nearly impossible due to the control scheme.
It's a waste of the PS3's power, too, as Kojima's quote from a long time ago will explain: "The PS3 is like the theatre, it's a little bit high-priced but it has to be high quality as well. The 360 is a DVD, it still needs to be high quality but you need more variations, while the Wii is almost like a TV channel, because every game you have it with your family." We need games that will take advantage of the PS3's power and Wii titles simply may not do that. If devs leave, there's no reason to buy a $600 console when most games are on a $250 one.