He mentions that very clearly in the article, and also makes it clear what he stands (and does not stand) to gain financially from Lander's article being discredited.

It's a very provocative title, but the policy recommendation in the article—that we stop issuing Nobel prizes and patents to individuals when discoveries happened over a long process—is pretty fair. And he does credit Lander for acknowledging all the scientists that predated both of their universities' work.