it's an issue you could bring up though. I remember just casually watching it awhile ago, and I swear I saw him miss it myself, then I looked back, and the way the sequence is edited, it seems as though he actually tries and misses if you're not paying attention, or if you're just remembering back on it, like thinking it only happened in the theater. I think it's when Luke is pulling out some slack on the cord, and it cuts real quick mid-pull to the ledge or something, then cuts back and he's collecting the slack, and it can definitely look like he tried to throw it. I dunno I can't check now, but that's where I think the myth comes from. I'm probably not the first to think that

but it is a theory.