Wycen said:I wondered about this as well. Whatever the reason, it probably also explains why all the Earth ships were centered on Earth at the end. Because at the end of the previous season's timeline, the super weapon was headed to Earth and presumably all ships capable of damaging the weapon where stationed around Earth for defense.
I can understand them not being changed because they went back in time and thus became Time agents. However if last seasons timeline is still in tact that means the TCW still happened and is still effecting them and their timeline. If the TCW never happened, which is what I got from Daniels, then Enterprise's timeline should have been reset back to the beginning of Season 1.