How? is everyone forgetting that the Narada can simply mop the floor with the best ships any race in this timeline has?
Because it was made very clear in the film, what with the blowing 50+ ships away without effort.
The only way to take her out is using the Red Matter, going back and getting between the Narada and Old Spock as he arrives, which is deadly enough as it is.
Are you forgetting that they figured out how to beat the Narada and her crew before it destroyed Earth?
Spock now has the blueprint of a successful assault on that ship.