So, if angels who are cut off from Heaven don’t have their mojo and all the angels have just been cast out of Heaven, does that mean all the angels are “normal people” now?

Because if the [supposedly] four archangels are dead or KO, and Cas (the only seraph still alive that we know of) had his grace stolen by Metatron, then all the other angels are just ‘angels’. Did the writers just give demons a huge leg up in the world?