This article makes a number of incorrect statements. First of all, all observed FRBs so far are at cosmological distances, well outside the Milky Way. Second, even before the discovery of a repeating source, neutron star collisions have already been ruled out as being a primary source of FRBs because of their rate. Only a very small fraction of neutron stars collide with another neutron star or black hole in the lifetime of the Universe (of the order of 1 every tens of thousands). On the other hand, the FRB rate inferred from the observations is around several percent of the core-collapse supernova rate, ie, the rate at which neutron stars are formed.
EDIT
Also the energy estimate given in the article are way off. The energy released by FRBs are of the order of what the Sun emits in 1 year not 1 day (assuming that FRB emit energy isotropically and that the distances estimated from the dispersion measurement of FRBs are correct).