When you cheat at climbing, you cheat no one but yourself, but you still cheated.
If there is only one bolt on a 50 meter long route, placed 2m below the anchor, and you pre-clip it, did you still lead the route? No, you top roped it. Same thing if the bolt is only 2m off the ground. Preclipping is toproping. And claiming a lead for a route you toprope in whole or part, is cheating. Hence we call a cheater stick a cheater stick whether it is used for aid climbing or not.