I know you probably weren’t genuinely asking but I looked up that exact question about Lucky once and I found out that according to nookipedia, his e-reader card profile is as follows:
“Lucky took luck into this own hands when he went on that fateful fishing trip last week. Between casting his rod too far, snagging his line on a rock, and losing his balance and falling overboard, Lucky's luck held true to form.”
So I think the idea is supposed to be, the fact that he isn’t dead is what makes him lucky, lol. Either that or his name is a joke about how extremely unlucky it was for that to happen.
Also I agree about Stitches and I’m glad to see someone who does lol! I always thought his eyes were unsettling and I only recently realized why: it’s because he resembles an old teddy bear but with Xes for eyes instead of buttons, and it makes it look like his eyes got torn off and only the stitches were left behind. So now whenever I look at him I just have to wonder if he can even see!