This interview came some time after Beyond. Nobody mentioned ST14 here.
All these changes are quite explainable using the above ripples theory as well, though, without the need of resorting to parallel universes.
About Spock, what could he do to fix the timeline, realistically?
Even if he brought back the JJ enterprise to the moment Nero arrived there was no guarantee they would be able to stop the Narada and even if they did that two future vessels fighting each other in front of the Kelvin would still end up having unknown effects on the timeline.
The only way to fix things would have been preventing Nero from traveling back in time, but that’s not possible because it happens in the future of another timeline.