“A low-rank ANG guy may need a TS-SCI for his partucular mission, but would not have access to anything like what we’ve seen coming out.”
You really can’t make that determination unless you are framilar with his particular job tasks. He very well could have had a “need to know” for that information but you don’t know that one way or the other. And “low ranking” is not a criteria for access.
The intel leaks were vastly diverse and high level - everything from Uke troop levels to diplomatic intel, to spying on our allies and North Korea.
There is no such MOS, especially in the ANG, that could concievably “need to know” any of that.