I've been writing this site for more than 12 years, and when I started, the word "kindie" hadn't even been coined. Yes, artists like Dan Zanes, Laurie Berkner, and Justin Roberts had released multiple albums, and of course artists like Trout Fishing in America, Cathy Fink and Marcy Marxer and Raffi were walking along the paths Pete Seeger, Ella Jenkins, and others had created.
When I researched the Grammy nominations for the kids music awards (non-spoken word) handed out in February 2004 and February 2005, bookending the start of this site, I was a little surprised to see that it wasn't a collection of Disney retreads -- both years are pretty solid collections of albums from artists familiar to this site.
But I think it's fair to say that those lists come more from a folk-music tradition with some gentle pop thrown in. I think that the Dan Zanes nod in 2005 is the only album that could safely plant both feet in the "kindie" tradition as it's been most popularly understood -- pulling in rock and other musical traditions beyond folk and pop, and not dependent upon music labels for funding and distribution.
This list, on the other hand, while pulling in elements of folk music and pop, feels like its heart comes from indie rock and some hip-hop. At this point Brady Rymer (nominated for multiple Grammys) and the Okee Dokee Brothers (winners and nominated multiple times) seem like Grammy royalty, and only Rymer had released an album before 2005.
And unlike lists of recent years, on which Rymer, the Okee Dokee Brothers, and Secret Agent 23 Skidoo had previously appeared, there was no "exception" this year. No non-kids artist making an album for kids, no spoken-word recitation of a book, no... nothing. Just five artists all easily described as kindie stars, with roughly 35 albums for kids between them. I don't want to say it's the perfect "kindie" list, because that implies a qualitative hierarchical distinction that I'm not trying to make. But I'm not sure I could come up with a list that is... more kindie (as it's currently defined in terminology and example) than this one.