You know, "need" may be the wrong word here, since it almost seems to imply that a reboot was only justifiable if it was absolutely necessary. As opposed to simply seeing a reboot as a good idea that did the trick.
Were there other options? Possibly. Is there anything wrong with rebooting STAR TREK? Not at all . . .
Again, reboots are not the devil. Sometimes they can be very interesting variations on a theme.