I think the part where I went "OK yeah this was the reference when he was coming up with the core plot and character of Paul" was when I came across the part where Lawrence comes up with his novel guerrilla war strategy: he's sick, feverish, possibly dying, in a tent in the desert, tended by a few companions. When he comes out of it, he's got his Path. It's too perfect.
[edit] Incidentally, it's not clear to me this author has a good picture of Lawrence's background. Lines like this:
> In terms of clothing, Lawrence comes to accept the Arab dress as “convenient in such a climate” and blends in with his Arab companions by wearing it instead of the British officer uniform.
make me think the author isn't aware that Lawrence had already spent a lot of time in the Middle East (especially, IIRC, modern Syria—so, near Damascus) very shortly before the war broke out, and that was a big part of why he was recruited by British intelligence for the mission(s) in Seven Pillars. It was on an earlier, pre-war trip that he'd adopted Arab dress—unlike what's suggested (if not quite stated) in the film Lawrence of Arabia, he was already quite familiar with and comfortable in it.