We get up to 4 chests at max with the LUC stat. If I'm getting lucky, I want to feel lucky. Getting 2~10 chests in my opinion doesn't sound too bad. Sometimes we get one chest, nothing new, right? But if we get something absurd like 8 chests at random, oh man...just think of all the reactions and possibilities..
Yes and i don't think it's particularly low tbh. I get extra chests 20% of the time, which isn't that bad in the long run.
(About) Every 5 runs... I've been at 200 LUC before, and I know how that feels.. Having to constantly play and wait and wait and wait until you finally get x4 chest feels so aggravating. And when I do get it, I think to myself "Why can't I have more? A revamped LUC stat would surely prove useful to many players!"