It is indeed correct that the T-2A/T-2Z were not armed. We do not however have that version in game.
The version we have in game is based on the XT-2 prototypes. As mentioned in the blogs, the prototypes were sequentially updated and upgraded over time and were armed. This is why we have chosen the name T-2 Early, to represent the fact that this is not just a singular XT-2 early on, but an earlier version of the T-2 that we have in game (a prototype version).
There is therefor no need to replace the T-2 Early.