I think "Lawful" in this context is best understood as "the opposite of chaotic". Chaotic, in turn, is not one monolithic thing, but several things: Disuniformity (including change, ie disuniformity in the temporal direction), Conflict, Entropy, and Lawlessness/Normlessness
Prequel Vader was a CE dumbass, by the time period of the original trilogy (and of Rogue One) he jad gotten it together, NE or LE, and the CE dumbass baton had been passed to Tarkin.
Vader is 110% a CE dumbass.
Prequel Vader was a CE dumbass, by the time period of the original trilogy (and of Rogue One) he jad gotten it together, NE or LE, and the CE dumbass baton had been passed to Tarkin.