Yes, but so? It provides a modicum of balance versus relentless hype by founders and the doting media. Even if not true it might remind people to have some healthy skepticism. The fact that your reflex is to find it "extremely mean spirited" speaks volumes. Everyone else in life gets shat apron because of other people's unscrupulous behavior, why are these people special? People should assume that there is a good chance any business venture is a fraud.

Ultimately it's one guy's opinion. It's not like he's going to ruin these people's lives or businesses.