It's true that you cannot replicate Rossi's allegations independently because he refuses to reveal the way his alleged reactor works. However, the "independent report" mentioned in the article basically tested this thing as a black box for more than a month; Rossi was present at the start and at the end, but not during the test, and all the equipment and so on was not his but procured independently. Even if Rossi did some screwy stuff, it cannot explain the 1.5 MWh gain for more than 32 days - the only thing that could explain this, assuming it indeed is a con, is unreliable heat measurement. While it is true that there has been some doubts expressed on that subject, the researchers have a lot of experience performing such measurements; and they are far from being disreputable researchers or shady characters. One of the authors of the subsequent paper is also, by the way, the previous head of the Swedish skeptics society - someone that does have some experience in debunking bullshit claims.
I'm not saying this thing is working as advertised, mind you; but this report is troubling and warrants further research. And the article isn't only about the e-cat: it's about another researcher, Parkhomov, having set up a similar experiment based on what he could glean from Rossi's alleged reactor, and witnessing similar excess energy production. This other experiment is, by contrast, completely open and can be verified/replicated/debunked, so I suppose it's just a matter of time before someone attempts such a replication and confirm or infirm this new experiment.