I don't think the guys getting PTSD fighting Picts on the Isles cared much about logistics beyond ensuring they had something to eat and equipment to use. I'm sure I don't have to tell you that Romans were a lot of different people but I just take umbrage with the wording (more from the OP image). The idea of labeling all Romans by the heights of their exemplars.
Like, the US has a lot of well-regarded universities but we wouldn't call Americans a learned people; a country of skilled doctors and exacting engineers.
Noice art