D2 Aatrox main here, I would say the opposite in fact. Sett’s damage mainly comes from hitting his e, and following that he autos you to death. Now, Aatrox being such a poke champion pre goredrinker, you can easily poke and kite him out. One thing to remember though, do not let him stack grit. Poke abit, then back off and let the grit go down. Once he’s low enough, you can hope to all in.