By the time DS9 ended a reboot was required because there the Dominion War's aftermath was so all-encompassing. You couldn't really set a Trek show set in the Alpha Quadrant without being a continuation of DS9 which was never a favorite with the higher-ups.
So I understand the need for a reboot. But I don't like the fact they chose to reboot it as a movie. I sure don't like the way they did a remake/reimagining of the TOS and characters, if it was a remake of TNG that would've been at least watchable (I am not a TOS fan).