I’ve always been amazed at the luck our forces had in getting to Yamamoto.
I'm not sure how you meant "luck" but the mission was specifically to kill Yamamoto. They had to fly 600 miles to get him (and they could easily have missed the rendezvous), but he was the target of the p-38s that day. IOW, they didn't just happen to shoot down a transport carrying Yamamoto (if that's what you meant).
Wasn’t just luck, it was incredibly good intelligence work like when we figured out in May 1942 that Midway was the target for Yamamoto’s task force and the battle ended with four Jap carriers sunk.
Too bad in a way; Yamamoto did not hate Americans and warned hothead generals not to underestimate us, with phrases like “a rifle behind every blade of grass” if the Japs were to invade North America.
BTW. why am I saying “we” and “us” when I wasn’t even born yet? Strange.
Since they had prior knowledge that he was going to be there it wasn't really luck.