You might consider asking her in private, of course the more astute of us already know the answer. Do you consider yourself astute?
Well, it would depend on which side of the homeschool argument you're on.
For the easily offended or perpetually offended, ANY criticism of public schools, will do more harm than good. For Pete's sake, the mere existence of homeschoolers offends some. Doesn't matter what they say.
Unfortunate part for public schoolers is wintertime is right about most of what he(she) says.
Disclaimer: There is virtually no one with whom I agree 100%, so that comment is not any reflection on the content of wintertime's remarks.