Interesting. I admit I'm not familiar with these cases you refer to, but I have to wonder if Kyle omitted mention of them because he wants to gloss over it, or if he omitted them because he simply doesn't have all the facts at hand. Either way, if it is as you say, it looks bad...
I don't think it's necessarily bad that homeschooling has a big liberal as well as conservative wing. Homeschooling liberals are just as opposed to state intervention as most conservatives.