I think I can state with a high degree of confidence that the blog author was neither assuming nor suggesting that "the ranks of small businesspeople are unifor

I think I can state with a high degree of confidence that the blog author was neither assuming nor suggesting that "the ranks of small businesspeople are uniformly populated with flighty dilettantes." Seems like a strawman critique of the article, although your larger points are very true (viz. "glamorous" businesses, motivations, etc).