"Lazy" is also complete nonsense because Nintendo typically releases a very high number of titles (Wii and DS) each year, all with a consistent level of care and quality, even with stuff like Nintendogs and Brain Age (Often imitated, never duplicated.) They are probably the hardest working developer on the entire planet. Their customers don't think they are are lazy.
This is just projection, really. IGN had no idea what to do when Nintendo got popular after they had "doom and gloomed" it since E3 2004. Bitterly disappointed, acerbic editorials are easy. Several are written each day on message boards such as this. Eating some crow and actual analysis are much more difficult. Their credibility is nothing now, especially after that last diatribe, and instead of owning up to their mistakes and working toward getting new readers or possibly those old readers back, they take the easy way out and make a Gamefaqs-style rant with a bitter grape twist.