In cryptocurrencies, like in any other business, there are jelousy and big interest asking for no competetion. Do you think that if Microsoft and IBM are behind Blockchain, they would like another protocol to be created by anyone? Of course, not. So, there are also people in the media that have certain reputation and charge for doing special favor, like a good story for your company and a bad story for somebody else's company.
RE: IOTA's "Vulnerability"