No, it sounds NOTHING like Rossi's device. NASA says it adds neutrons while Rossi adds hydrogen, that is protons. Neutrons don't have the Coulomb barrier to deal with. You just need a neutron source (and therein lies the rub)...
Which is exactly what Rossi's device does. See Widom/Larson theory. The middle step is forcing an electron capture, turning the hydrogen proton into a low-energy neutron.
That is NASA’s way of distancing themselves from Rossi.
They’re going in hard for the Widom-Larson Theory, which seems to be derived from the need for political correctness more than explaining observations. By invoking the weak nuclear force, the theory claims that what is not taking place is cold fusion, even though you start with 2 atoms and you end up with 1 fused atom (at relatively cold temperatures). It’s roundabout cold fusion.
Neutron sources are easy. One I saw was a typical vacuum tube but it's cathode was coated with, I believe, deuterium, and once heated up, spewed neutrons. I believe they had the same type neutron source for both of the bombs dropped on Japan.