You're getting downvoted because luck isn't actionable, it's just a post-hoc explanation of events. There's always someone who wants to make themselves feel better about their lack of success by attributing others' to luck.

But here's the thing, we are all continuous actors in our own lives. Successful founders have a healthy vision of what they can control and what they can't, and they try to maneuver their companies into a position to succeed based on the state of the world as they see it at the time. What looks like luck from 30,000 feet was actually the result of a concerted effort day-in and day-out, usually over the course of years, to put themselves in a position to succeed. The fact that there success isn't reproducible, or that they weren't in control of everything does not mean that they succeeded because luck. That's a lullaby that wantrepreneurs tell themselves to protect their egos, but it's poisonous to ones ability to build something successful.