I was thinking something very similar as I read the letter and hear people talk about luck in a similar way. I think attributing things to luck, while seemingly humble, can be dismissive and/or simplistic. Yes, we're all lucky to be in our situations -- living in this time, fed, privileged. Though, whether this luck is experienced positively or not is entirely subjective. Also, to ascribe our given situation to luck dismisses the concerted efforts of all living things of this time and past that have guided us to our current situation -- once again, without qualifying it as good or bad. It is almost disabling in it's message. The flip side is that many things happened that were dreamed, planned, intended, and carried out to land us in our situation. This to me feels more empowering, hopeful, appreciative, and also responsible than casting off as merely luck.
I was searching for what to answer people who attribute everything I’ve done to luck. There’s the classic “It’s strange because the more I work the more I’m lucky”, but that’s very condescending. Thank you for offering me a positive alternative. In a sense it makes me owe work to my society.
If you accept that the world is not "just" (just-world-fallacy), then you will also believe that rewards are indeterministic. It follows that rewards are attributed to luck, while effort and results are (by definition) not.
There is no accusation of dishonesty in this argument, and no need to feel accused of scamming.
(One point is that people who persist longer, receive more awards because the "area" under their luck-curve is larger. And people who have lots bad luck in the beginning get discouraged and stop trying ...)